When I use win_build_opencv.cmd,I encountered some problems

[RealCommonCat]

When the script "mingw32-make install" "Building CXX object" it showed some trobles

Description

C:\opencv\build>mingw32-make install
[ 0%] Built target opencv_dnn_plugins
[ 0%] Built target opencv_highgui_plugins
[ 0%] Built target gen-pkgconfig
[ 1%] Built target jsimd
[ 2%] Built target libopenjp2
[ 2%] Built target opencv_videoio_plugins
[ 3%] Built target zlib
[ 8%] Built target opencv_core
[ 12%] Built target opencv_imgproc
[ 14%] Built target libjpeg-turbo
[ 16%] Built target libtiff
[ 22%] Built target libwebp
[ 27%] Built target IlmImf
[ 28%] Built target libpng
[ 29%] Built target opencv_imgcodecs
[ 29%] Building CXX object modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_obsensor/obsensor_uvc_stream_channel.cpp.obj
In file included from C:\opencv\opencv-4.8.1\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:41,
from C:\opencv\opencv-4.8.1\modules\videoio\src\cap_obsensor\obsensor_uvc_stream_channel.cpp:33:
C:\opencv\opencv-4.8.1\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp: In instantiation of 'class cv::obsensor::ComPtr':
C:\opencv\opencv-4.8.1\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:145:42: required from here
C:\opencv\opencv-4.8.1\modules\videoio\src\cap_obsensor\obsensor_stream_channel_msmf.hpp:106:27: error: could not convert template argument 'cv::obsensor::ComPtr::__T_IID_getter' from 'const IID& (cv::obsensor::ComPtr::)()' {aka 'const GUID& (cv::obsensor::ComPtr::)()'} to 'const IID& ()()' {aka 'const GUID& ()()'}
106 | _COM_SMARTPTR_TYPEDEF(T, __uuidof(T));

Your Environment

• Operating System and version: Win10
• OpenCV version used: nil
• How did you install OpenCV? no
• GoCV version used: 0.35.0
• Go version: 1.12.1
• Did you run the env.sh or env.cmd script before trying to go run or go build? yes

[stedwick]

I also cannot get it installed on Windows 11. It cannot find the header files, even though they are right there?

PS C:\Users\phili\SourceCode\goopencv> set CGO_CPPFLAGS="-IC:/Users/phili/SourceCode/opencv/build/include"
PS C:\Users\phili\SourceCode\goopencv> go run -tags customenv "C:\Users\phili\go\pkg\mod\gocv.io\x\gocv@v0.35.0\cmd\version\main.go"
# gocv.io/x/gocv
In file included from aruco.cpp:1:0:
aruco.h:5:10: fatal error: opencv2/opencv.hpp: No such file or directory
 #include <opencv2/opencv.hpp>
          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.

PS C:\Users\phili\SourceCode\goopencv> dir C:\Users\phili\SourceCode\opencv\build\include\opencv2\opencv.hpp

    Directory: C:\Users\phili\SourceCode\opencv\build\include\opencv2

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-a----         9/27/2023   9:54 AM           3558 opencv.hpp

PS C:\Users\phili\SourceCode\goopencv>

[stedwick]

I tried installing it in MSYS2 and got a different error:

phili@PhilBook3 UCRT64 ~/gocv
$ go run "C:\msys64\ucrt64\lib\go\pkg\mod\gocv.io\x\gocv@v0.35.0\cmd\version\main.go"

# gocv.io/x/gocv
C:\Users\phili\go\pkg\mod\gocv.io\x\gocv@v0.35.0\calib3d_string.go:3:9: undefined: CalibFlag
C:\Users\phili\go\pkg\mod\gocv.io\x\gocv@v0.35.0\calib3d_string.go:29:9: undefined: CalibCBFlag
C:\Users\phili\go\pkg\mod\gocv.io\x\gocv@v0.35.0\core_string.go:3:9: undefined: MatType
...
C:\Users\phili\go\pkg\mod\gocv.io\x\gocv@v0.35.0\core_string.go:159:9: too many errors

[ajmandourah]

I also cannot get it installed on Windows 11. It cannot find the header files, even though they are right there?

PS C:\Users\phili\SourceCode\goopencv> set CGO_CPPFLAGS="-IC:/Users/phili/SourceCode/opencv/build/include"

maybe use "\" instead of "/"

[x41lex]

Building with "-DWITH_OBSENSOR=OFF" as suggested here fixed this issue for me.