build error？

[justbin1123]

log is：

collect2: error: ld returned 1 exit status
CMakeFiles/point_cloud_annotation.dir/build.make:244: recipe for target 'point_cloud_annotation' failed
make[2]: *** [point_cloud_annotation] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/point_cloud_annotation.dir/all' failed
make[1]: *** [CMakeFiles/point_cloud_annotation.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2

how can i resolve it？

[siddhantjain]

I just tried a fresh build and it seemed to work. Can you please confirm you have all the dependencies (OpenCV/PCL)? Can you please also let me know what platform are you trying to build this for?

[matianxing1992]

Same to me, And i'm sure I have both libopencv-dev and libpcl-dev with Ubuntu16.04. Do I have to build them from source? I would really appreciate it if you can give me some advice. Thanks!

[siddhantjain]

Same to me, And i'm sure I have both libopencv-dev and libpcl-dev with Ubuntu16.04. Do I have to build them from source? I would really appreciate it if you can give me some advice. Thanks!

There is no need to build them from source. To help you further I think detailed logs might be useful. Can you try running the make command with the verbose option on and then have a look at the logs? The following command will switch on the verbose option: make VERBOSE=1

[niallomahony93]

I get the following warning during the build...

Scanning dependencies of target bluenotebook
[  9%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNModel.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 18%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNView.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 27%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNSegmentator.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 36%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNPainter.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 45%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNState.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directoryScanning dependencies of target bluenotebook
[  9%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNModel.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 18%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNView.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 27%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNSegmentator.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 36%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNPainter.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 45%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNState.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 54%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNLabelStore.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 63%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNConfigReader.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 72%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNPointCloudReader.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 81%] Linking CXX static library libbluenotebook.a
[ 81%] Built target bluenotebook
Scanning dependencies of target point_cloud_annotation
[ 90%] Building CXX object CMakeFiles/point_cloud_annotation.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/main.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 54%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNLabelStore.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 63%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNConfigReader.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 72%] Building CXX object CMakeFiles/bluenotebook.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/BNPointCloudReader.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
[ 81%] Linking CXX static library libbluenotebook.a
[ 81%] Built target bluenotebook
Scanning dependencies of target point_cloud_annotation
[ 90%] Building CXX object CMakeFiles/point_cloud_annotation.dir/home/niall/Downloads/Downloads/PointCloudAnnotationTool/src/main.cpp.o
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNState.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNModel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNView.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNSegmentator.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPainter.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/common.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabelStore.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNLabel.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNConfigReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../src/includes/BNPointCloudReader.h: not a directory
cc1plus: warning: /home/niall/Downloads/Downloads/PointCloudAnnotationTool/prj/../third_party/cvui/cvui.h: not a directory
```
./point_cloud_annotation opens the viewer ok but when a press 'a' to begin annotation the program crashes. Here is the output.. 
`./point_cloud_annotation
2 : Welcome to our point cloud annotation tool. As of now, a new window will open where you can manipulate the point cloud. All messages will be shown in this window
Initialising state 
This is called
Model Created
Initialising Model
Loading point cloud: ../data/chair2.txt
Converting XYZ Point Cloud to XYZRGB Point Cloud
Constructing Segmentator
Doing normal region growing segmentation
Segmentation Initialisation done
Readying the painter
Constructing Painter
Painter Initialisation done
View Created
Creating a PCL Visualiser for the view
Keyboard event occurred
Keyboard event occurred
Keyboard event occurred
Keyboard event occurred
^[[A^[[BKeyboard event occurred
Displaying: Label: unlabelled( 0 )
Displaying: Label: class1( 1 )
Displaying: Label: class2( 2 )
Displaying: Label: class3( 3 )
Displaying: Label: class4( 4 )
Displaying: Label: class5( 5 )
Displaying: Label: class6( 6 )
Error: signal 11:
./point_cloud_annotation(_Z13crashHandler2i+0x2b)[0x4c8a4d]
/lib/x86_64-linux-gnu/libc.so.6(+0x354b0)[0x7f4395d5e4b0]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_+0x4)[0x7f43967547c4]
./point_cloud_annotation(_ZN12BNLabelStore15GetNameForLabelB5cxx11Ej+0x38)[0x4c9d7c]
./point_cloud_annotation(_ZN6BNView16RefreshStateViewEv+0x310)[0x4a379c]
./point_cloud_annotation(_ZN6BNView20KeyboardEventHandlerERKN3pcl13visualization13KeyboardEventEPv+0x3a1)[0x4a48f7]
./point_cloud_annotation(_ZNK5boost4_mfi3mf2Iv6BNViewRKN3pcl13visualization13KeyboardEventEPvEclERS2_S7_S8_+0x76)[0x4b1a3e]
./point_cloud_annotation(_ZN5boost3_bi5list3INS_17reference_wrapperI6BNViewEENS_3argILi1EEENS0_5valueIPvEEEclINS_4_mfi3mf2IvS3_RKN3pcl13visualization13KeyboardEventES8_EENS0_5list1ISI_EEEEvNS0_4typeIvEERT_RT0_i+0x82)[0x4b0e6a]
./point_cloud_annotation(_ZN5boost3_bi6bind_tIvNS_4_mfi3mf2Iv6BNViewRKN3pcl13visualization13KeyboardEventEPvEENS0_5list3INS_17reference_wrapperIS4_EENS_3argILi1EEENS0_5valueISA_EEEEEclIS9_EEvOT_+0x55)[0x4b0035]
./point_cloud_annotation(_ZN5boost6detail8function26void_function_obj_invoker1INS_3_bi6bind_tIvNS_4_mfi3mf2Iv6BNViewRKN3pcl13visualization13KeyboardEventEPvEENS3_5list3INS_17reference_wrapperIS7_EENS_3argILi1EEENS3_5valueISD_EEEEEEvSC_E6invokeERNS1_15function_bufferESC_+0x39)[0x4af09b]
`

[mei123hao]

same problem! HAVE YOU SOLVED IT? @niallomahony93

[ThinhPham24]

I also met the same problem, Can you help me solve it?