Hi!
I have been trying to build the opencv_contrib module for OpenCV 3.1 on Visual Studio 15. These are the steps I've done so far:
1) Downloaded the OpenCV 3.1 from [http://opencv.org/downloads.html](http://opencv.org/downloads.html) and extracted the content to my chosen directory (C:\opencv).
2) Cloned the opencv_contrib repository from here [https://github.com/opencv/opencv_contrib](https://github.com/opencv/opencv_contrib) and chosen a directory for it (C:\opencv_contrib)
3) I tried running the Cmake GUI from standard command line using admin rights. I chose the VS15 as generator for this.
It got me this error:
Here it seems to me that Cmake is unable to find the VS C++ compiler, and thus is unable to generate the build. To fix this i tried running the cmake-gui from the developer command line for VS15.
This seemed to have done the trick.
I wrote in the path for the OPENCV_EXTRA_MODULES_PATH:
I also ticked OFF the opencv_aruco module as I know it causes problems with my current project.
After this i hit "configure" and let Cmake run. It does this with no error. I then hit "generate" and let it finish. All still good.
4) I then opened the created OpenCV.sln project in the C:\opencv\build folder in VS.
5) I then tried to build the ALL_BUILD and INSTALL project files and get this error output for the building the debug solution of ALL_BUILD:
It seems here to me that the problem lies in Cmake trying to generate a 32bit solution, while VS15 expects a 64bit solution. I have no idea how this happens! Any help would be appreciated!
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