opencv_contrib
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Published
20 hours ago •
opencv
opencv
Prompt for unresolved external symbols when compiling CVV modules
System Information
OpenCV version: 4.9.0 Operating System / Platform: Windows 10 Compiler & compiler version: VS 2022
Detailed description
输出-生成.txt
It seems that it is because there was no moc applied to the object of qt, and the file moc_xxx was not found in the compilation directory
view_controller.obj : error LNK2001: 无法解析的外部符号 "public: virtual struct QMetaObject const * __cdecl cvv::gui::CallTab::metaObject(void)const " (?metaObject@CallTab@gui@cvv@@UEBAPEBUQMetaObject@@XZ)
image_call_tab.obj : error LNK2001: 无法解析的外部符号 "public: virtual struct QMetaObject const * __cdecl cvv::gui::CallTab::metaObject(void)const " (?metaObject@CallTab@gui@cvv@@UEBAPEBUQMetaObject@@XZ)
view_controller.obj : error LNK2001: 无法解析的外部符号 "public: virtual void * __cdecl cvv::gui::CallTab::qt_metacast(char const *)" (?qt_metacast@CallTab@gui@cvv@@UEAAPEAXPEBD@Z)
image_call_tab.obj : error LNK2001: 无法解析的外部符号 "public: virtual void * __cdecl cvv::gui::CallTab::qt_metacast(char const *)" (?qt_metacast@CallTab@gui@cvv@@UEAAPEAXPEBD@Z)
Steps to reproduce
clone
git clone --branch 4.9.0 --depth 1 https://github.com/opencv/opencv.git
git clone --branch 4.9.0 --depth 1 https://github.com/opencv/opencv_contrib.git
output
Cloning into 'opencv'...
remote: Enumerating objects: 8638, done.
remote: Counting objects: 100% (8638/8638), done.
remote: Compressing objects: 100% (7371/7371), done.
remote: Total 8638 (delta 1370), reused 4372 (delta 839), pack-reused 0
Receiving objects: 100% (8638/8638), 87.25 MiB | 8.61 MiB/s, done.
Resolving deltas: 100% (1370/1370), done.
Note: switching to 'dad8af6b17f8e60d7b95a1203a1b4d22f56574cf'.
Cloning into 'opencv_contrib'...
remote: Enumerating objects: 3798, done.
remote: Counting objects: 100% (3798/3798), done.
remote: Compressing objects: 100% (3189/3189), done.
remote: Total 3798 (delta 677), reused 2130 (delta 356), pack-reused 0
Receiving objects: 100% (3798/3798), 53.53 MiB | 9.08 MiB/s, done.
Resolving deltas: 100% (677/677), done.
Note: switching to 'c7602a8f74205e44389bd6a4e8d727d32e7e27b4'.
install qt 5.15.2 msvc2019
Install through the official QT installer
open cmake-gui
Selecting Windows SDK version 10.0.22621.0 to target Windows 10.0.22631.
Detected processor: AMD64
Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at least version "3.2")
libjpeg-turbo: VERSION = 2.1.3, BUILD = opencv-4.9.0-libjpeg-turbo
libjpeg-turbo(SIMD): SIMD extensions disabled: could not find NASM compiler. Performance will suffer.
Could NOT find OpenJPEG (minimal suitable version: 2.0, recommended version >= 2.3.1). OpenJPEG will be built from sources
OpenJPEG: VERSION = 2.5.0, BUILD = opencv-4.9.0-openjp2-2.5.0
OpenJPEG libraries will be built from sources: libopenjp2 (version "2.5.0")
found Intel IPP (ICV version): 2021.11.0 [2021.11.0]
at: C:/Users/Public/dev/opencv/build/3rdparty/ippicv/ippicv_win/icv
found Intel IPP Integration Wrappers sources: 2021.11.0
at: C:/Users/Public/dev/opencv/build/3rdparty/ippicv/ippicv_win/iw
Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
Could NOT find BLAS (missing: BLAS_LIBRARIES)
Could NOT find LAPACK (missing: LAPACK_LIBRARIES)
Reason given by package: LAPACK could not be found because dependency BLAS could not be found.
VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
Module opencv_alphamat disabled because the following dependencies are not found: Eigen
freetype2: NO
harfbuzz: NO
Julia not found. Not compiling Julia Bindings.
Module opencv_ovis disabled because OGRE3D was not found
No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
Failed to find installed gflags CMake configuration, searching for gflags build directories exported with CMake.
Failed to find gflags - Failed to find an installed/exported CMake configuration for gflags, will perform search for installed gflags components.
Failed to find gflags - Could not find gflags include directory, set GFLAGS_INCLUDE_DIR to directory containing gflags/gflags.h
Failed to find glog - Could not find glog include directory, set GLOG_INCLUDE_DIR to directory containing glog/logging.h
Module opencv_sfm disabled because the following dependencies are not found: Eigen Glog/Gflags
Processing WORLD modules...
module opencv_core...
Allocator metrics storage type: 'long long'
module opencv_flann...
module opencv_imgproc...
module opencv_features2d...
module opencv_imgcodecs...
imgcodecs: OpenEXR codec is disabled in runtime. Details: https://github.com/opencv/opencv/issues/21326
module opencv_videoio...
module opencv_calib3d...
module opencv_cvv...
module opencv_video...
module opencv_xfeatures2d...
Processing WORLD modules... DONE
Excluding from source files list: modules/imgproc/src/imgwarp.lasx.cpp
Excluding from source files list: modules/imgproc/src/resize.lasx.cpp
General configuration for OpenCV 4.9.0 =====================================
Version control: 4.9.0
Extra modules:
Location (extra): C:/Users/Public/dev/opencv_contrib/modules
Version control (extra): 4.9.0
Platform:
Timestamp: 2024-01-24T08:00:00Z
Host: Windows 10.0.22631 AMD64
CMake: 3.26.4
CMake generator: Visual Studio 17 2022
CMake build tool: C:/Program Files/Microsoft Visual Studio/2022/Professional/MSBuild/Current/Bin/amd64/MSBuild.exe
MSVC: 1936
Configuration: Debug Release
CPU/HW features:
Baseline: SSE SSE2 SSE3
requested: SSE3
Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
SSE4_1 (14 files): + SSSE3 SSE4_1
SSE4_2 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2
FP16 (0 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
AVX (3 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
AVX2 (28 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
AVX512_SKX (3 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX
C/C++:
Built as dynamic libs?: YES
C++ standard: 11
C++ Compiler: C:/Program Files/Microsoft Visual Studio/2022/Professional/VC/Tools/MSVC/14.36.32532/bin/Hostx64/x64/cl.exe (ver 19.36.32535.0)
C++ flags (Release): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:precise /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /wd4819 /MP /O2 /Ob2 /DNDEBUG
C++ flags (Debug): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:precise /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /wd4819 /MP /Zi /Ob0 /Od /RTC1
C Compiler: C:/Program Files/Microsoft Visual Studio/2022/Professional/VC/Tools/MSVC/14.36.32532/bin/Hostx64/x64/cl.exe
C flags (Release): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:precise /MP /O2 /Ob2 /DNDEBUG
C flags (Debug): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:precise /MP /Zi /Ob0 /Od /RTC1
Linker flags (Release): /machine:x64 /INCREMENTAL:NO
Linker flags (Debug): /machine:x64 /debug /INCREMENTAL
ccache: NO
Precompiled headers: NO
Extra dependencies:
3rdparty dependencies:
OpenCV modules:
To be built: calib3d core cvv features2d flann imgcodecs imgproc video videoio world xfeatures2d
Disabled: aruco bgsegm bioinspired ccalib datasets dnn dnn_objdetect dnn_superres dpm face fuzzy gapi hfs highgui img_hash intensity_transform java_bindings_generator js_bindings_generator line_descriptor mcc ml objc_bindings_generator objdetect optflow phase_unwrapping photo plot python_bindings_generator python_tests quality rapid reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking videostab wechat_qrcode ximgproc xobjdetect xphoto
Disabled by dependency: -
Unavailable: alphamat cannops cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev freetype hdf java julia matlab ovis python2 python3 sfm ts viz
Applications: -
Documentation: NO
Non-free algorithms: YES
Windows RT support: NO
GUI:
QT: YES (ver 5.15.2 )
QT OpenGL support: NO
Win32 UI: YES
VTK support: NO
Media I/O:
ZLib: build (ver 1.3)
JPEG: build-libjpeg-turbo (ver 2.1.3-62)
SIMD Support Request: YES
SIMD Support: NO
WEBP: build (ver encoder: 0x020f)
PNG: build (ver 1.6.37)
TIFF: build (ver 42 - 4.2.0)
JPEG 2000: build (ver 2.5.0)
OpenEXR: build (ver 2.3.0)
HDR: YES
SUNRASTER: YES
PXM: YES
PFM: YES
Video I/O:
DC1394: NO
FFMPEG: YES (prebuilt binaries)
avcodec: YES (58.134.100)
avformat: YES (58.76.100)
avutil: YES (56.70.100)
swscale: YES (5.9.100)
avresample: YES (4.0.0)
GStreamer: NO
DirectShow: YES
Media Foundation: YES
DXVA: YES
Parallel framework: Concurrency
Trace: YES (built-in)
Other third-party libraries:
Intel IPP: 2021.11.0 [2021.11.0]
at: C:/Users/Public/dev/opencv/build/3rdparty/ippicv/ippicv_win/icv
Intel IPP IW: sources (2021.11.0)
at: C:/Users/Public/dev/opencv/build/3rdparty/ippicv/ippicv_win/iw
Lapack: NO
Eigen: NO
Custom HAL: NO
Protobuf: build (3.19.1)
Flatbuffers: builtin/3rdparty (23.5.9)
OpenCL: YES (NVD3D11)
Include path: C:/Users/Public/dev/opencv/3rdparty/include/opencl/1.2
Link libraries: Dynamic load
Python (for build): NO
Install to: C:/Users/Public/dev/opencv/build/install
-----------------------------------------------------------------
Configuring done (5.0s)
Generating done (1.0s)
Issue submission checklist
- [X] I report the issue, it's not a question
- [X] I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution
- [X] I updated to the latest OpenCV version and the issue is still there
- [ ] There is reproducer code and related data files (videos, images, onnx, etc)
After manually executing moc on xxx.hpp.
Add moc_ xxx.cpp to the project.
Can solve the problem of symbol not being found in xxx.obj
You can see that the error message from main_call_window.obj has disappeared
But I couldn't find a solution to fix it by setting up relevant code in CMake
As long as the BUILD_opencv_world is not checked, it can be successfully built. I don't know if this is intentional or not
I found that the reason is that qt needs to be AUTOMOC before target creation, but qt in cvv is only found in cvv's cmakelist. When compiling the opencv_world, the cmakelist in cvv was not run, so there are no qt and moc for the opencv_world.
As a result, I made some modifications in cmakelist in opencv_world, moc the source and header files of cvv in opencv_world(but I don't know why I can't set only the moc part of the file, so it now moc all the source and header files), and after the modifications, I compiled a opencv_world.dll file linked to qt.
After testing, it works very well
fix pr:https://github.com/opencv/opencv/pull/24921