# MacOS 10.15 does not work to processing

**URL:** <https://discourse.processing.org/t/macos-10-15-does-not-work-to-processing/16507>\
**Category:** Processing\
**Created:** [December 19, 2019, 10:58am UTC](https://discourse.processing.org/t/macos-10-15-does-not-work-to-processing/16507 "2019-12-19T10:58:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![MingYu](https://avatars.discourse-cdn.com/v4/letter/m/77aa72/32.png) [@MingYu](https://discourse.processing.org/u/MingYu)\
**Post date:** [December 19, 2019, 10:58am UTC](https://discourse.processing.org/t/macos-10-15-does-not-work-to-processing/16507/1 "2019-12-19T10:58:51Z")

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MacOS 10.15 Unable to open processing.

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**Author:** ![kll](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/kll/32/964_2.png) [@kll](https://discourse.processing.org/u/kll)\
**Post date:** [December 19, 2019, 12:14pm UTC](https://discourse.processing.org/t/macos-10-15-does-not-work-to-processing/16507/2 "2019-12-19T12:14:57Z")

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> [@MingYu](#):
>
> MacOS 10.15

does this

> [@Processing 3 with macOS Catalina](https://discourse.processing.org/t/processing-3-with-macos-catalina/13338):
>
> I was wondering If anyone else had managed to get Processing working on the new macOS beta or if I’m just doing something wrong with my installation or something like that. FIXED: in developer beta 5 it works

help?