Error: Unable to locate 'mexopts.bat'

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satendra kumar
satendra kumar on 11 Sep 2012
Answered: Jesse Lee on 13 Sep 2020
I am trying to simulate the file in the following link-
But i am getting a error message "Unable to locate 'mexopts.bat', and therefore cannot determine which compiler to use for simulation builds. Use 'mex -setup' to select a supported compiler." Please somebody suggest some solution of it.

Accepted Answer

Matt Fig
Matt Fig on 11 Sep 2012
I would suggest you follow the advice of the error message! Type this at the command line:
mex -setup
  4 Comments
Kaustubha Govind
Kaustubha Govind on 13 May 2013
You need to install a supported compiler if you don't have one already. Look at the last column on this page against your MATLAB version: http://www.mathworks.com/support/sysreq/previous_releases.html

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More Answers (2)

sandeep d
sandeep d on 15 Jul 2015
i am also getting this same error.please help me

Jesse Lee
Jesse Lee on 13 Sep 2020
I got the same question,"Unable to locate 'mexopts.bat', and therefore cannot determine which compiler to use for simulation builds.
And I try to enter 'mex -setup' the output is :
Unknown encoding 'cp65001' at D:\Program Files\MATLAB\R2010b\bin\/mexutils.pm line 154
??? Error using ==> mex at 208
Unable to complete successfully.
PS: my version is 2010b. And actually, I've already installed the compiler, which I can see on 2020a

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