Building problem in Windows

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Compiling OpenCV in Windows :

Hi, I am trying to build OpenCV Python bindings from source in Windows. I use Microsoft Visual C++ 2010.

I configured with CMake , and opened the OPENCV.sln solution with MVC++. While opening it, an error is shown :

"Solution folders are not supported in this version of the application"
"Solution folder '3rd party' will be displayed as unavailable" 
"Solution folder 'CMakeTargets' will be displayed as unavailable"
"Solution folder 'applications' will be displayed as unavailable"
"Solution folder 'bindings' will be displayed as unavailable"
"Solution folder 'extra' will be displayed as unavailable"
"Solution folder 'modules' will be displayed as unavailable"
"One or more projects in this solution is not loaded correctly"

See the red marked region.

What is this problem, and how can I solve it?