hello all, i am trying to use mex setup command on matlab 2012a but it does not work on my laptop, and i get the error "Previously accessible file "C:\Program Files\MATLAB\R2012a\toolbox\matlab\iofun\tempname.m" is now inaccessible." any ideas??

i cannot make mex setup command to work on my matla2012a?

Geoff Hayes 2014-10-30

bena - what happens if you type the following in the Command Window

tempname

and/or

which tempname -all

As tempname is a built-in function that generates a unique name for a temporary file, both of the above commands should return a unique file name and the path to the tempname.m respectively.

bena 2014-10-30

编辑：bena 2014-10-30

the first one doesnt work while the second one "which tempname -all" returns "C:\ProgramFiles\MATLAB\R2012a\toolbox\matlab\iofun\tempname.m" i have windows 8 on my laptop and have installed SDK7.1, visual studo 2010. but still getting the same error again and again.

Geoff Hayes 2014-10-30

What error do you get when you run tempname?

bena 2014-10-30

编辑：bena 2014-10-30

>> tempname Previously accessible file "C:\Program Files\MATLAB\R2012a\toolbox\matlab\iofun\tempname.m" is now inaccessible. may be that's because maatlab is not confiigured properly on my laptop, I have tried everything but its not working. perhaps re installation of matlab can help??

Geoff Hayes 2014-10-30

编辑：Geoff Hayes 2014-10-30

在 MATLAB Online 中打开

If you type

open tempname

does the file open in the editor?

And, what does

path

return? If there is a list, do you see the directory C:\Program Files\MATLAB\R2012a\toolbox\matlab\ iofun?

i cannot make mex setup command to work on my matla2012a?

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