Error using mex: No supported or SDK was found

I have window 7 ultimate 64 bit with visual studio 12. I install CUDA kit 6.5 64 bit and matlab 14. When I run a mex file after performing all steps given in documentation http://www.mathworks.com/help/distcomp/run-mex-functions-containing-cuda-code.html?refresh=true ,then above error is found. How can I get rid of this error?

Try searching the forums first. It seems every day someone asks this same question, and I direct them to this same tutorial:

http://www.orangeowlsolutions.com/archives/498