MATLAB: Unable to find cl.exe executing vl_compilenn

mexmingw64vlfeat

Hi,
I am trying to execute
    vl_compilenn
from here, but I get this error:
    Error using vl_compilenn>check_clpath (line 599)
    Unable to find cl.exe
    Error in vl_compilenn (line 417)
        cl_path = fileparts(check_clpath()); % check whether cl.exe in path
I am using MinGW64 Compiler. I already read a potential fix could be adding the path to cl.exe to your environment variables, but how do I know where it's located? Am at a loss right now.

Best Answer

Reading the help section of a failing code is obligatory. In vl_compilenn you find:
 %   Compilation on Windows with MinGW compiler (the default mex compiler in
 %   Matlab) is not supported. For Windows, please reconfigure mex to use
 %   Visual Studio C/C++ compiler.
Install the SDK7.1, which is explained in many threads here in this forum.
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