Matlab R2021a does not open anymore after updating to Update 7 on MacOS Big Sur 11.6.8

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Jordi Wijlens 2022-8-15

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https://ww2.mathworks.cn/matlabcentral/answers/1779680-matlab-r2021a-does-not-open-anymore-after-updating-to-update-7-on-macos-big-sur-11-6-8

评论： Jordi Wijlens 2022-8-18

Matlab R2021a does not open anymore after updating to Update 7 on MacOS Big Sur 11.6.8. Did anyone else run into the same problem and what was your solution?

Thank you very much in advance!

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Answer 1

Keerthana Ramesh 2022-8-18

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https://ww2.mathworks.cn/matlabcentral/answers/1779680-matlab-r2021a-does-not-open-anymore-after-updating-to-update-7-on-macos-big-sur-11-6-8#answer_1028640

编辑：Keerthana Ramesh 2022-8-18

在 MATLAB Online 中打开

Hi,

This issue could possibly be due to MATLAB’s search path being incorrectly set during the base installation.

A possible workaround to resolve this issue can be by launching MATLAB without desktop and then restoring the default MATLAB search path and rehashing the toolbox cache.

1) Open MATLAB with the -nodesktop start-up flag. In the Command Prompt, enter:

On macOS:

/Applications/MATLAB_R2021a.app/bin/matlab -nodesktop

2) Enter the following commands into the MATLAB Command Window, one after the other:

>> rehash toolboxcache
>> restoredefaultpath
>> savepath

I hope this information resolves your issue.

Thanks,

Keerthana

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Walter Roberson 2022-8-18

Well, maybe, but security updates to recent MacOS versions have changed the interpretation of environment variables, and of shared object search paths. Some people have reported trouble getting MATLAB to run. Note that the user is using R2021a not R2022a.

Jordi Wijlens 2022-8-18