# PsychoPy3 - won't run on macOS10.11 (El capitan)

**URL:** <https://discourse.psychopy.org/t/psychopy3-wont-run-on-macos10-11-el-capitan/6336>\
**Category:** Coding\
**Created:** [January 16, 2019, 8:46am UTC](https://discourse.psychopy.org/t/psychopy3-wont-run-on-macos10-11-el-capitan/6336 "2019-01-16T08:46:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Chat-95](https://avatars.discourse-cdn.com/v4/letter/c/3d9bf3/32.png) [@Chat-95](https://discourse.psychopy.org/u/Chat-95)\
**Post date:** [January 16, 2019, 8:46am UTC](https://discourse.psychopy.org/t/psychopy3-wont-run-on-macos10-11-el-capitan/6336/1 "2019-01-16T08:46:33Z")

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Hi Everyone,

I’m trying to install the new version of PsychopY on my Mac (version IOS 10.11 - El Capitan).  
When I’m trying to open it, nothing happen (the window “verifying packages” stay on the screen)…

I already tried to delete last version of Psychopy to see if there were a incompatibility between the two versions but it doesn’t work.

So I tried to install packages to run psychopy experiment on python consol but the terminal never finish to install “hdf5” (after installing HomeBrew).

Any Idea ?

Thanks

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**Author:** ![simon.jangard](https://avatars.discourse-cdn.com/v4/letter/s/f17d59/32.png) [@simon.jangard](https://discourse.psychopy.org/u/simon.jangard)\
**Post date:** [January 28, 2019, 2:22pm UTC](https://discourse.psychopy.org/t/psychopy3-wont-run-on-macos10-11-el-capitan/6336/2 "2019-01-28T14:22:49Z")

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Hi,

No solution but I could just possibly confirm your MacOS-problem with packages in psychopy3, where I currently have problem with installing psychopy3 through Anaconda on MacOS Mojave.

Everything seems to be fine when installing the dependencies through the Terminal, but I cant get Anaconda/Spyder to access/identify psychopy.

Best  
Simon

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<div class="post-metadata">

**Author:** ![Chat-95](https://avatars.discourse-cdn.com/v4/letter/c/3d9bf3/32.png) [@Chat-95](https://discourse.psychopy.org/u/Chat-95)\
**Post date:** [January 28, 2019, 2:36pm UTC](https://discourse.psychopy.org/t/psychopy3-wont-run-on-macos10-11-el-capitan/6336/3 "2019-01-28T14:36:45Z")

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Hi Simon !

I didn’t really find the problem but I tried an alternative way that worked.  
I had PsychoPY3 on my MacBook Pro so I used an USB to copy/paste it on my iMac El Capitan and it worked.

I can now open it and use it without any problem.

Best,  
Charlotte