Invalid mex file error

When I run the following code statement: model = svmtrain(labels, data, '-s 0 -t 2 -c 1 -g 0.1');

I get error: Invalid MEX-file 'C:\Program Files\libsvm-3.21\windows\svmtrain.mexw64': The specified procedure could not be found.

I tried all the ways to fix it, set the folder to matlab path, but couldn't understand where the problem is.

Please advise.

Answer 1

[Walter Roberson]

svmtrain.mexw64 needs a DLL that you do not have (or which cannot be found.)

You should either use a tool such as Dependency Walker to track down the missing DLL, or else you should use the Statistics toolbox with R2013b or later, which has SVM built in.

[Astha Ameta]

I used Dependency Walker previously and installed all the missing DLL files, but error is still there.

I am not able to get what the issue is. Please advise.

[Walter Roberson]

Sorry, I do not have a compiler set up on my Windows virtual machines, so I cannot build libsvm.