mex C compiler cannot find .c file

I am using 64bit matlab 2013a, have installed windows SDK 7.1 and used mex -setup to locate that c compiler.

However, when I tried to use it by compiling the example .c file,

cd([matlabroot '\extern\examples\mex'])

mex yprime.c

it prompts me, ...\BIN\MEX.PL: Error: 'yprime.c' not found .

But the file is just inside the directory.

I doubt it is the C compiler problem so I uninstalled and installed it again but the program retains.

Another confusing part is that, when I did "mex -setup", the located Microsoft SDK 7.1 is in " C:\Program Files (x86)\Microsoft Visual Studio 10.0", which seems to suggest it is in 32bit directory.

But I download SDK 7.1 installer from the website suggested for Windows 64bit..

I am completely confused. Any suggestion is gratefully welcomed!

Answer 1

[James Tursa]

What do you get whey you type:

dir yprime.c

Also, as a general rule you should copy source files from their original directories into your working directory and compile them there, rather than compiling them in the source directory.

[Kelsie Zhao]

Hi Thanks for the suggestions. Before I saw your response I reinstalled Matlab, so right now it is giving me a different error. When I type

mex yprime.c

it gives me

Building with 'Microsoft Windows SDK 7.1 (C)'.

Error using mex_

Creating library yprime.lib and object yprime.exp

I then re-installed Matlab 32 bit, it gives a similar error.

Do you have any idea what this is?

[James Tursa]

Do you have "write" privilege in the directory you are using? The error message looks like it can't create the files.