MATLAB: Could not access the MCR component cache Error

accesscomponent cacheMATLAB Compilermcr

Im getting an error where the command window closes immediately after I click on an executable file developed using Matlab. The error message reads "Could not access the MCR component cache". I am using a pre-packaged executable and MCR on 64bit Windows (the MCR version is correct). The executable was working fine but suddenly stopped working yesterday after I closed-restarted it a few times. I reinstalled the MCR but it gives me the same error.

I am a novice in Matlab so any ideas are much appreciated.

Best Answer

Not sure, but could it be that the extracted CTF archive somehow got corrupted? I think it is usually extracted to C:\user_name\AppData\Local\Temp\userid\mcrCachen.nn (where the 'n' stands for a number). If you can find the file, perhaps you can delete it and run your executable again to see if it is regenerated. If you can't find it, you could try deleting the files in your Temp folder (usually C:\user_name\AppData\Local\Temp\) and try again.

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Please look at this previous answer.

MATLAB: How to resolve issues associated with MATLAB Compiler Runtime cache corruption

Delete the “mcrCache” folder used by the application and rerun the application.The “mcrCache” folder can be located by executing the following command in MATLAB Command window:

mcrcachedir

Note that “mcrCache” folders have the form “mcrCacheX.Y,” where X and Y indicate MATLAB Compiler Runtime (MCR) version. The “mcrCacheX.Y” output by the above command may not correspond to the version of the “mcrCache” folder used by your application.

Delete the “mcrCacheX.Y” folder used by the application. If you are unsure of which “mcrCacheX.Y” is used by your application, delete all folders of the form “mcrCacheX.Y” in the parent directory of the location returned by “mcrcachedir.”

For example, on my machine, “mcrcachedir” returns:C:\Users\Username\AppData\Local\Temp\Parth\mcrCache9.8

But the parent directory “C:\Users\Username\AppData\Local\Temp\Parth” contains folders “mcrCache9.1” and “mcrCache9.8.” Once you delete the appropriate “mcrCache” folder(s), try rerunning your application.

Alternatively, try changing the location of the “mcrCache” folder by typing the following into the Windows Command Prompt:

set MCR_CACHE_ROOT=<accessible_directory>

Where <accessible_directory> is some easy-to-find directory that you have the permission to modify (e.g. the Desktop). Then rerun the application from within the Windows Command Prompt by navigating to its directory and typing the application name in the same Windows Command Prompt.

Best Answer

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MATLAB: Not able to run Matlab Standalone Executable

MATLAB: How to resolve issues associated with MATLAB Compiler Runtime cache corruption

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