image_feature_detector flutter run failed in example

flutter run failed in example

Open eyasuyuki opened this issue 5 years ago • 0 comments

$ flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, v1.7.8+hotfix.4, on Mac OS X 10.14.6 18G84, locale ja-JP)
[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 10.3)
[✓] iOS tools - develop for iOS devices
[✓] Android Studio (version 3.4)
[✓] VS Code (version 1.35.1)
[✓] Connected device (1 available)

• No issues found!

$ flutter run
Launching lib/main.dart on iPhone Xʀ in debug mode...
Running Xcode build...                                          
Xcode build done.                                            3.9s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **


Xcode's output:
↳
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:52:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:57:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/matx.hpp:209:19: warning: not a Doxygen trailing comment [-Wdocumentation]
        _Tp val[m*n]; //< matrix elements
                      ^~~
                      ///<
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:52:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:58:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/types.hpp:87:17: warning: not a Doxygen trailing comment [-Wdocumentation]
        _Tp re, im; //< the real and the imaginary parts
                    ^~~
                    ///<
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/types.hpp:912:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:52:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:59:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/mat.hpp:3710:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref MatrixExpressions, absdiff, convertScaleAbs
    ~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:52:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:147:2: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
    @deprecated drop this version
    ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:149:55: note: add a deprecation attribute to the declaration to silence this warning
    CV_EXPORTS CV_NORETURN void error(const Exception& exc);
                                                          ^
                                                            CV_DEPRECATED
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:294:10: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param top
    ~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:295:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param bottom
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:296:11: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param left
    ~~~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:52:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:3290:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/utility.hpp:243:2: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
    @deprecated Current implementation doesn't corresponding to this documentation.
    ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/utility.hpp:254:31: note: add a deprecation attribute to the declaration to silence this warning
    CV_EXPORTS_W int getThreadNum();
                                  ^
                                    CV_DEPRECATED
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:56:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:48:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/features2d.hpp:344:24: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param fastThreshold
        ~~~~~~~~~~~~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:56:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:532:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dr3dr1
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:533:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dr3dt1
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:534:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dr3dr2
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:535:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dr3dt2
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:536:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dt3dr1
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:537:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dt3dt1
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:538:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dt3dr2
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:1285:18: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param aspectRatio \f$f_y/f_x\f$
    ~~~~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:1760:11: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param mask
    ~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:2087:8: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param Q \f$4 \times 4\f$ perspective transformation matrix that can be obtained with stereoRectify.
    ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:2757:17: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param affine
        ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:2832:19: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param new_size
        ~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:2858:21: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param image_size
        ~~~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:2865:19: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param new_size
        ~~~~~~~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:62:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/dnn.hpp:76:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/dnn/dnn.hpp:224:19: warning: empty paragraph passed to '@brief' command [-Wdocumentation]
            /** @brief
                ~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/dnn/dnn.hpp:231:19: warning: empty paragraph passed to '@brief' command [-Wdocumentation]
            /** @brief
                ~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:41:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/saving.h:36:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/nn_index.h:36:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/result_set.h:357:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/result_set.h:366:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/result_set.h:487:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:36:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/kdtree_index.h:41:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/dynamic_bitset.h:98:19: warning: empty paragraph passed to '@param' command [-Wdocumentation]
         * @param index
           ~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/dynamic_bitset.h:109:19: warning: empty paragraph passed to '@param' command [-Wdocumentation]
         * @param index
           ~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/dynamic_bitset.h:117:16: warning: empty paragraph passed to '@param' command [-Wdocumentation]
         * @param sz
           ~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:36:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/kdtree_index.h:46:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/random.h:109:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/random.h:109:9: warning: '@return' command used in a comment that is attached to a constructor [-Wdocumentation]
         * @return
           ~^~~~~~
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:38:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/kmeans_index.h:49:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/logger.h:102:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:39:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/composite_index.h:82:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/composite_index.h:82:9: warning: '@return' command used in a comment that is attached to a constructor [-Wdocumentation]
         * @return
           ~^~~~~~
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:42:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_index.h:49:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_table.h:250:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_table.h:210:17: warning: empty paragraph passed to '@param' command [-Wdocumentation]
         * @param key
           ~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_table.h:211:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:42:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_index.h:257:15: warning: parameter 'do_radius' not found in the function declaration [-Wdocumentation]
         * @param do_radius flag indicating if we check the radius too
                  ^~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_index.h:261:15: warning: parameter 'checked_average' not found in the function declaration [-Wdocumentation]
         * @param checked_average used for debugging
                  ^~~~~~~~~~~~~~~
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:173:23: warning: empty paragraph passed to '@param' command [-Wdocumentation]
            @param distance
            ~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:401:5: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
     * @deprecated Use GenericIndex class instead
       ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:568:6: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
    /** @deprecated
        ~^~~~~~~~~~
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:68:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:48:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgcodecs.hpp:239:10: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param buf
    ~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgcodecs.hpp:240:12: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param flags
    ~~~~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:68:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:290:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:325:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:340:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:346:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:380:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:393:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:480:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:533:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:561:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:575:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:590:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:605:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:74:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:518:5: warning: empty paragraph passed to '@see' command [-Wdocumentation]
    @see @ref imgproc_color_conversions
    ~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2281:8: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param M \f$2\times 3\f$ transformation matrix.
    ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2315:8: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param M \f$3\times 3\f$ transformation matrix.
    ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2506:2: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
    @deprecated This function produces same result as cv::warpPolar(src, dst, src.size(), center, maxRadius, flags+WARP_POLAR_LOG);
    ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2544:65: note: add a deprecation attribute to the declaration to silence this warning
                                Point2f center, double M, int flags );
                                                                    ^
                                                                      CV_DEPRECATED
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2548:2: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
    @deprecated This function produces same result as cv::warpPolar(src, dst, src.size(), center, maxRadius, flags)
    ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2585:76: note: add a deprecation attribute to the declaration to silence this warning
                                   Point2f center, double maxRadius, int flags );
                                                                               ^
                                                                                 CV_DEPRECATED
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3529:5: warning: empty paragraph passed to '@see' command [-Wdocumentation]
    @see @ref imgproc_color_conversions
    ~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3538:8: warning: parameter 'src1:' not found in the function declaration [-Wdocumentation]
    @param src1: 8-bit image (#CV_8U) of the Y plane.
           ^~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3538:8: note: did you mean 'src1'?
    @param src1: 8-bit image (#CV_8U) of the Y plane.
           ^~~~~
           src1
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3539:8: warning: parameter 'src2:' not found in the function declaration [-Wdocumentation]
    @param src2: image containing interleaved U/V plane.
           ^~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3539:8: note: did you mean 'src2'?
    @param src2: image containing interleaved U/V plane.
           ^~~~~
           src2
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3540:8: warning: parameter 'dst:' not found in the function declaration [-Wdocumentation]
    @param dst: output image.
           ^~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3540:8: note: did you mean 'dst'?
    @param dst: output image.
           ^~~~
           dst
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3541:8: warning: parameter 'code:' not found in the function declaration [-Wdocumentation]
    @param code: Specifies the type of conversion. It can take any of the following values:
           ^~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3541:8: note: did you mean 'code'?
    @param code: Specifies the type of conversion. It can take any of the following values:
           ^~~~~
           code
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:77:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:143:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_data
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:396:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_bayes
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:434:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_knn
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:516:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_svm
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:826:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_em
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:999:17: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param probs0
        ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:1043:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_trees
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:1237:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_rtrees
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:1313:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_boost
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:1412:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_ann
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:1610:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_lr
    ~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:89:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching.hpp:49:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:66:11: warning: empty paragraph passed to '@brief' command [-Wdocumentation]
    /** @brief
        ~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:68:21: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param featuresFinder
    ~~~~~~~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:69:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param images
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:70:15: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param features
    ~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:71:12: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param masks
    ~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:79:11: warning: empty paragraph passed to '@brief' command [-Wdocumentation]
    /** @brief
        ~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:81:21: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param featuresFinder
    ~~~~~~~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:82:12: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param image
    ~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:83:15: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param features
    ~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:84:11: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param mask
    ~~~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:89:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching.hpp:51:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/exposure_compensate.hpp:47:4: warning: Detected Apple 'NO' macro definition, it can cause build conflicts. Please, include this header before any Apple headers. [-W#warnings]
    #  warning Detected Apple 'NO' macro definition, it can cause build conflicts. Please, include this header before any Apple headers.
       ^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/exposure_compensate.hpp:66:12: error: expected identifier
        enum { NO, GAIN, GAIN_BLOCKS, CHANNELS, CHANNELS_BLOCKS };
               ^
    In file included from <built-in>:1:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/Target Support Files/image_feature_detector/image_feature_detector-prefix.pch:2:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:60:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:17:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:20:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/dispatch/dispatch.h:48:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/os/object.h:101:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/NSObject.h:10:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/objc.h:90:13: note: expanded from macro 'NO'
    #define NO  __objc_no
                ^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:89:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching.hpp:52:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/seam_finders.hpp:62:12: error: expected identifier
        enum { NO, VORONOI_SEAM, DP_SEAM };
               ^
    In file included from <built-in>:1:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/Target Support Files/image_feature_detector/image_feature_detector-prefix.pch:2:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:60:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:17:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:20:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/dispatch/dispatch.h:48:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/os/object.h:101:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/NSObject.h:10:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/objc.h:90:13: note: expanded from macro 'NO'
    #define NO  __objc_no
                ^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:89:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching.hpp:53:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/blenders.hpp:47:4: warning: Detected Apple 'NO' macro definition, it can cause build conflicts. Please, include this header before any Apple headers. [-W#warnings]
    #  warning Detected Apple 'NO' macro definition, it can cause build conflicts. Please, include this header before any Apple headers.
       ^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/blenders.hpp:68:12: error: expected identifier
        enum { NO, FEATHER, MULTI_BAND };
               ^
    In file included from <built-in>:1:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/Target Support Files/image_feature_detector/image_feature_detector-prefix.pch:2:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:60:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:17:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:20:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/dispatch/dispatch.h:48:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/os/object.h:101:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/NSObject.h:10:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/objc.h:90:13: note: expanded from macro 'NO'
    #define NO  __objc_no
                ^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:95:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/video.hpp:56:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/video/tracking.hpp:169:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/video/tracking.hpp:216:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/video/tracking.hpp:526:15: warning: empty paragraph passed to '@brief' command [-Wdocumentation]
        /** @brief @ref calc function overload to handle separate horizontal (u) and vertical (v) flow components
            ~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.mm:8:
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:16:81: warning: array parameter is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness-on-arrays]
    +(void) sortPoints: (std::vector<cv::Point>)unsortedPoints withList:(cv::Point2f[]) baseList;
                                                                                    ^
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:16:81: note: insert '_Nullable' if the array parameter may be null
    +(void) sortPoints: (std::vector<cv::Point>)unsortedPoints withList:(cv::Point2f[]) baseList;
                                                                                    ^
                                                                                     _Nullable
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:16:81: note: insert '_Nonnull' if the array parameter should never be null
    +(void) sortPoints: (std::vector<cv::Point>)unsortedPoints withList:(cv::Point2f[]) baseList;
                                                                                    ^
                                                                                     _Nonnull
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:17:80: warning: array parameter is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness-on-arrays]
    +(void) getTopLeftPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                   ^
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:17:80: note: insert '_Nullable' if the array parameter may be null
    +(void) getTopLeftPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                   ^
                                                                                    _Nullable
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:17:80: note: insert '_Nonnull' if the array parameter should never be null
    +(void) getTopLeftPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                   ^
                                                                                    _Nonnull
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:18:83: warning: array parameter is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness-on-arrays]
    +(void) getBottomLeftPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                      ^
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:18:83: note: insert '_Nullable' if the array parameter may be null
    +(void) getBottomLeftPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                      ^
                                                                                       _Nullable
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:18:83: note: insert '_Nonnull' if the array parameter should never be null
    +(void) getBottomLeftPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                      ^
                                                                                       _Nonnull
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:19:81: warning: array parameter is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness-on-arrays]
    +(void) getTopRightPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                    ^
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:19:81: note: insert '_Nullable' if the array parameter may be null
    +(void) getTopRightPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                    ^
                                                                                     _Nullable
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:19:81: note: insert '_Nonnull' if the array parameter should never be null
    +(void) getTopRightPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                    ^
                                                                                     _Nonnull
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:20:84: warning: array parameter is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness-on-arrays]
    +(void) getBottomRightPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                       ^
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:20:84: note: insert '_Nullable' if the array parameter may be null
    +(void) getBottomRightPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                       ^
                                                                                        _Nullable
    /Users/yasuyuki/git/image_feature_detector/ios/Classes/PointsHelper.h:20:84: note: insert '_Nonnull' if the array parameter should never be null
    +(void) getBottomRightPoint: (std::vector<cv::Point>) points addToList:(cv::Point2f[]) list;
                                                                                       ^
                                                                                        _Nonnull
    100 warnings and 3 errors generated.
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:52:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:57:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/matx.hpp:209:19: warning: not a Doxygen trailing comment [-Wdocumentation]
        _Tp val[m*n]; //< matrix elements
                      ^~~
                      ///<
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:52:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:58:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/types.hpp:87:17: warning: not a Doxygen trailing comment [-Wdocumentation]
        _Tp re, im; //< the real and the imaginary parts
                    ^~~
                    ///<
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/types.hpp:912:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:52:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:59:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/mat.hpp:3710:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref MatrixExpressions, absdiff, convertScaleAbs
    ~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:52:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:147:2: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
    @deprecated drop this version
    ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:149:55: note: add a deprecation attribute to the declaration to silence this warning
    CV_EXPORTS CV_NORETURN void error(const Exception& exc);
                                                          ^
                                                            CV_DEPRECATED
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:294:10: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param top
    ~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:295:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param bottom
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:296:11: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param left
    ~~~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:52:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core.hpp:3290:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/utility.hpp:243:2: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
    @deprecated Current implementation doesn't corresponding to this documentation.
    ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/core/utility.hpp:254:31: note: add a deprecation attribute to the declaration to silence this warning
    CV_EXPORTS_W int getThreadNum();
                                  ^
                                    CV_DEPRECATED
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:56:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:48:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/features2d.hpp:344:24: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param fastThreshold
        ~~~~~~~~~~~~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:56:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:532:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dr3dr1
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:533:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dr3dt1
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:534:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dr3dr2
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:535:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dr3dt2
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:536:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dt3dr1
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:537:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dt3dt1
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:538:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param dt3dr2
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:1285:18: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param aspectRatio \f$f_y/f_x\f$
    ~~~~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:1760:11: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param mask
    ~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:2087:8: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param Q \f$4 \times 4\f$ perspective transformation matrix that can be obtained with stereoRectify.
    ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:2757:17: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param affine
        ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:2832:19: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param new_size
        ~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:2858:21: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param image_size
        ~~~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/calib3d.hpp:2865:19: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param new_size
        ~~~~~~~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:62:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/dnn.hpp:76:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/dnn/dnn.hpp:224:19: warning: empty paragraph passed to '@brief' command [-Wdocumentation]
            /** @brief
                ~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/dnn/dnn.hpp:231:19: warning: empty paragraph passed to '@brief' command [-Wdocumentation]
            /** @brief
                ~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:41:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/saving.h:36:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/nn_index.h:36:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/result_set.h:357:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/result_set.h:366:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/result_set.h:487:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:36:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/kdtree_index.h:41:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/dynamic_bitset.h:98:19: warning: empty paragraph passed to '@param' command [-Wdocumentation]
         * @param index
           ~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/dynamic_bitset.h:109:19: warning: empty paragraph passed to '@param' command [-Wdocumentation]
         * @param index
           ~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/dynamic_bitset.h:117:16: warning: empty paragraph passed to '@param' command [-Wdocumentation]
         * @param sz
           ~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:36:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/kdtree_index.h:46:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/random.h:109:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/random.h:109:9: warning: '@return' command used in a comment that is attached to a constructor [-Wdocumentation]
         * @return
           ~^~~~~~
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:38:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/kmeans_index.h:49:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/logger.h:102:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:39:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/composite_index.h:82:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/composite_index.h:82:9: warning: '@return' command used in a comment that is attached to a constructor [-Wdocumentation]
         * @return
           ~^~~~~~
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:42:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_index.h:49:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_table.h:250:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_table.h:210:17: warning: empty paragraph passed to '@param' command [-Wdocumentation]
         * @param key
           ~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_table.h:211:15: warning: empty paragraph passed to '@return' command [-Wdocumentation]
         * @return
           ~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:48:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/flann_base.hpp:43:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/all_indices.h:42:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_index.h:257:15: warning: parameter 'do_radius' not found in the function declaration [-Wdocumentation]
         * @param do_radius flag indicating if we check the radius too
                  ^~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann/lsh_index.h:261:15: warning: parameter 'checked_average' not found in the function declaration [-Wdocumentation]
         * @param checked_average used for debugging
                  ^~~~~~~~~~~~~~~
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:65:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:173:23: warning: empty paragraph passed to '@param' command [-Wdocumentation]
            @param distance
            ~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:401:5: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
     * @deprecated Use GenericIndex class instead
       ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/flann.hpp:568:6: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
    /** @deprecated
        ~^~~~~~~~~~
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:68:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:48:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgcodecs.hpp:239:10: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param buf
    ~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgcodecs.hpp:240:12: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param flags
    ~~~~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:68:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:290:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:325:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:340:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:346:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:380:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:393:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:480:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:533:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:561:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:575:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:590:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/highgui.hpp:605:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:74:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:518:5: warning: empty paragraph passed to '@see' command [-Wdocumentation]
    @see @ref imgproc_color_conversions
    ~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2281:8: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param M \f$2\times 3\f$ transformation matrix.
    ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2315:8: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param M \f$3\times 3\f$ transformation matrix.
    ~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2506:2: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
    @deprecated This function produces same result as cv::warpPolar(src, dst, src.size(), center, maxRadius, flags+WARP_POLAR_LOG);
    ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2544:65: note: add a deprecation attribute to the declaration to silence this warning
                                Point2f center, double M, int flags );
                                                                    ^
                                                                      CV_DEPRECATED
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2548:2: warning: declaration is marked with '\deprecated' command but does not have a deprecation attribute [-Wdocumentation-deprecated-sync]
    @deprecated This function produces same result as cv::warpPolar(src, dst, src.size(), center, maxRadius, flags)
    ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:2585:76: note: add a deprecation attribute to the declaration to silence this warning
                                   Point2f center, double maxRadius, int flags );
                                                                               ^
                                                                                 CV_DEPRECATED
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3529:5: warning: empty paragraph passed to '@see' command [-Wdocumentation]
    @see @ref imgproc_color_conversions
    ~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3538:8: warning: parameter 'src1:' not found in the function declaration [-Wdocumentation]
    @param src1: 8-bit image (#CV_8U) of the Y plane.
           ^~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3538:8: note: did you mean 'src1'?
    @param src1: 8-bit image (#CV_8U) of the Y plane.
           ^~~~~
           src1
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3539:8: warning: parameter 'src2:' not found in the function declaration [-Wdocumentation]
    @param src2: image containing interleaved U/V plane.
           ^~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3539:8: note: did you mean 'src2'?
    @param src2: image containing interleaved U/V plane.
           ^~~~~
           src2
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3540:8: warning: parameter 'dst:' not found in the function declaration [-Wdocumentation]
    @param dst: output image.
           ^~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3540:8: note: did you mean 'dst'?
    @param dst: output image.
           ^~~~
           dst
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3541:8: warning: parameter 'code:' not found in the function declaration [-Wdocumentation]
    @param code: Specifies the type of conversion. It can take any of the following values:
           ^~~~~
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/imgproc.hpp:3541:8: note: did you mean 'code'?
    @param code: Specifies the type of conversion. It can take any of the following values:
           ^~~~~
           code
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:77:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:143:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_data
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:396:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_bayes
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:434:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_knn
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:516:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_svm
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:826:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_em
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:999:17: warning: empty paragraph passed to '@param' command [-Wdocumentation]
        @param probs0
        ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:1043:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_trees
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:1237:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_rtrees
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:1313:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_boost
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:1412:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_ann
    ~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/ml.hpp:1610:4: warning: empty paragraph passed to '@sa' command [-Wdocumentation]
    @sa @ref ml_intro_lr
    ~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:89:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching.hpp:49:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:66:11: warning: empty paragraph passed to '@brief' command [-Wdocumentation]
    /** @brief
        ~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:68:21: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param featuresFinder
    ~~~~~~~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:69:13: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param images
    ~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:70:15: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param features
    ~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:71:12: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param masks
    ~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:79:11: warning: empty paragraph passed to '@brief' command [-Wdocumentation]
    /** @brief
        ~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:81:21: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param featuresFinder
    ~~~~~~~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:82:12: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param image
    ~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:83:15: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param features
    ~~~~~~~~~~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/matchers.hpp:84:11: warning: empty paragraph passed to '@param' command [-Wdocumentation]
    @param mask
    ~~~~~~~~~~^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:89:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching.hpp:51:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/exposure_compensate.hpp:47:4: warning: Detected Apple 'NO' macro definition, it can cause build conflicts. Please, include this header before any Apple headers. [-W#warnings]
    #  warning Detected Apple 'NO' macro definition, it can cause build conflicts. Please, include this header before any Apple headers.
       ^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/exposure_compensate.hpp:66:12: error: expected identifier
        enum { NO, GAIN, GAIN_BLOCKS, CHANNELS, CHANNELS_BLOCKS };
               ^
    In file included from <built-in>:1:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/Target Support Files/image_feature_detector/image_feature_detector-prefix.pch:2:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:60:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:17:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:20:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/dispatch/dispatch.h:48:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/os/object.h:101:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/NSObject.h:10:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/objc.h:90:13: note: expanded from macro 'NO'
    #define NO  __objc_no
                ^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:89:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching.hpp:52:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/seam_finders.hpp:62:12: error: expected identifier
        enum { NO, VORONOI_SEAM, DP_SEAM };
               ^
    In file included from <built-in>:1:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/Target Support Files/image_feature_detector/image_feature_detector-prefix.pch:2:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:60:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:17:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:20:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/dispatch/dispatch.h:48:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/os/object.h:101:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/NSObject.h:10:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/objc.h:90:13: note: expanded from macro 'NO'
    #define NO  __objc_no
                ^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:89:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching.hpp:53:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/blenders.hpp:47:4: warning: Detected Apple 'NO' macro definition, it can cause build conflicts. Please, include this header before any Apple headers. [-W#warnings]
    #  warning Detected Apple 'NO' macro definition, it can cause build conflicts. Please, include this header before any Apple headers.
       ^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/stitching/detail/blenders.hpp:68:12: error: expected identifier
        enum { NO, FEATHER, MULTI_BAND };
               ^
    In file included from <built-in>:1:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/Target Support Files/image_feature_detector/image_feature_detector-prefix.pch:2:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:60:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFPropertyList.h:17:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFStream.h:20:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/dispatch/dispatch.h:48:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/os/object.h:101:
    In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/NSObject.h:10:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.4.sdk/usr/include/objc/objc.h:90:13: note: expanded from macro 'NO'
    #define NO  __objc_no
                ^
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/ImageFeatureDetectorPlugin.mm:2:
    In file included from /Users/yasuyuki/git/image_feature_detector/ios/Classes/OpenCVWrapper.h:9:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/opencv.hpp:95:
    In file included from /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/video.hpp:56:
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/video/tracking.hpp:169:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/video/tracking.hpp:216:6: warning: empty paragraph passed to '@note' command [-Wdocumentation]
    @note
    ~~~~~^
    /Users/yasuyuki/git/image_feature_detector/example/ios/Pods/OpenCV2/opencv2.framework/Headers/video/tracking.hpp:526:15: warning: empty paragraph passed to '@brief' command [-Wdocumentation]
        /** @brief @ref calc function overload to handle separate horizontal (u) and vertical (v) flow components
            ~~~~~~^
    95 warnings and 3 errors generated.

Jul 25 '19 05:07 eyasuyuki

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image_feature_detector
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