# Compatibility error (Mac OS Big Sur) (Process quit with exit code 1)

**URL:** <https://discourse.macromodelbase.com/t/compatibility-error-mac-os-big-sur-process-quit-with-exit-code-1/157>\
**Category:** Download/Technical Issues\
**Created:** [May 10, 2021, 4:13pm UTC](https://discourse.macromodelbase.com/t/compatibility-error-mac-os-big-sur-process-quit-with-exit-code-1/157 "2021-05-10T16:13:50Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Tim1](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@Tim1](https://discourse.macromodelbase.com/u/Tim1)\
**Post date:** [May 10, 2021, 4:13pm UTC](https://discourse.macromodelbase.com/t/compatibility-error-mac-os-big-sur-process-quit-with-exit-code-1/157/1 "2021-05-10T16:13:50Z")

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![Bildschirmfoto 2021-05-10 um 17.56.22](https://canada1.discourse-cdn.com/flex036/uploads/mmb/original/1X/a4308bc38e8cadcabcc7dcae3ecd2e7ea8455937.png)

Hello,  
I have a problem with the compatibility of MATLAB and Dynare.  
When I open mmb-electron and run the compatibility check in the settings, I always get the error message shown in the picture.

Operating system: MacOS Big Sur (11.3.1)  
MATLAB: 2021a  
Dynare: 4.6.4

I have tried several versions of MATLAB (2020a, 2020b and 2021a), as well as Dynare (4.6.3, 4.6.4 and 4.7 (unstable)).

I always got the same error message.

I would be very glad to get some help.

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**Author:** ![stupefy](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.macromodelbase.com/stupefy/32/70_2.png) [@stupefy](https://discourse.macromodelbase.com/u/stupefy)\
**Post date:** [March 25, 2022, 2:12am UTC](https://discourse.macromodelbase.com/t/compatibility-error-mac-os-big-sur-process-quit-with-exit-code-1/157/2 "2022-03-25T02:12:26Z")

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Still unresolved in 2022.

Operating system: MacOS Big Sur (11.6.5)  
MATLAB: 2022a  
Dynare: 5.0

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**Author:** ![kaiL](https://avatars.discourse-cdn.com/v4/letter/k/cdc98d/32.png) [@kaiL](https://discourse.macromodelbase.com/u/kaiL)\
**Post date:** [June 27, 2022, 9:35am UTC](https://discourse.macromodelbase.com/t/compatibility-error-mac-os-big-sur-process-quit-with-exit-code-1/157/3 "2022-06-27T09:35:15Z")

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Hi

We are trying to identify and fix the problem. We will then update the mmb software.