I am trying to compile MatConvNet on Windows 8.1. Since it seems that I need to use the "Makefile" to do that, I downloaded GNUWin Make, which allows to use the make command on Windows. The error I get is the following one:
process_begin: CreateProcess(NULL, C:\Program Files\MATLAB\R2014a\bin\mexext, ...) failed.
while the file C:\Program Files\MATLAB\R2014a\bin\mexext.bat
exists.
Do you have any clue on that please?
I also tried to compile MatConvNet on Windows with MinGW and I faced the same error. Instead, you can try to compile MatConvNet using Visual Studio. It is explained here: http://blog.csdn.net/zxd675816777/article/details/40075209
With the translation from Chrome browser, it is understandable :) Thanks to this tutorial, I successfully generated the 4 mexw64 files needed by MatConvNet.