# Mopidy startup error MacOS 10.15.4

**URL:** https://discourse.mopidy.com/t/mopidy-startup-error-macos-10-15-4/3942
**Category:** Misc
**Created:** [April 20, 2020, 6:53pm UTC](https://discourse.mopidy.com/t/mopidy-startup-error-macos-10-15-4/3942 "2020-04-20T18:53:39Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![agb95](https://avatars.discourse-cdn.com/v4/letter/a/ecb155/32.png) [@agb95](https://discourse.mopidy.com/u/agb95)
#### Post date: [April 20, 2020, 6:53pm UTC](https://discourse.mopidy.com/t/mopidy-startup-error-macos-10-15-4/3942/1 "2020-04-20T18:53:39Z")

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attempt to run mopidy, i receive the following error:

ERROR: A GObject based library was not found.

Mopidy requires GStreamer to work. GStreamer is a C library with a  
number of dependencies itself, and cannot be installed with the regular  
Python tools like pip.

Please see [https://docs.mopidy.com/en/latest/installation/](https://docs.mopidy.com/en/latest/installation/) for  
instructions on how to install the required dependencies.

Traceback (most recent call last):  
File “/usr/local/bin/mopidy”, line 5, in   
from mopidy. **main** import main  
File “/usr/local/lib/python3.7/site-packages/mopidy/ **main**.py”, line 7, in   
from mopidy import commands  
File “/usr/local/lib/python3.7/site-packages/mopidy/commands.py”, line 15, in   
from mopidy.audio import Audio  
File “/usr/local/lib/python3.7/site-packages/mopidy/audio/ **init**.py”, line 2, in   
from .actor import Audio  
File “/usr/local/lib/python3.7/site-packages/mopidy/audio/actor.py”, line 8, in   
from mopidy.audio import tags as tags\_lib  
File “/usr/local/lib/python3.7/site-packages/mopidy/audio/tags.py”, line 7, in   
from mopidy.internal.gi import GLib, Gst  
File “/usr/local/lib/python3.7/site-packages/mopidy/internal/gi.py”, line 5, in   
import gi  
ModuleNotFoundError: No module named ‘gi’

attempted fix suggested [HERE](https://discourse.mopidy.com/t/mopidy-fails-on-osx-10-12-6-10-13-4/2387)

[quote=“troyxmccall, post:3, topic:2387, full:true”]  
found the culprit

needed to

```auto
brew reinstall gst-python --without-python --with-python@2

```

[/quote]  
receive the following error

Error: invalid option: --without-python

Any thoughts?

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<div class="post-metadata">

### Author: ![kingosticks](https://avatars.discourse-cdn.com/v4/letter/k/858c86/32.png) [@kingosticks](https://discourse.mopidy.com/u/kingosticks)
#### Post date: [April 20, 2020, 7:08pm UTC](https://discourse.mopidy.com/t/mopidy-startup-error-macos-10-15-4/3942/2 "2020-04-20T19:08:50Z")

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I have never used macOS or brew but that workaround looks like it’s trying to install something with Python 2, which may have worked in 2018 but won’t work now. Ths current version of Mopidy requires Python 3.

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### Author: ![steveof2620](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.mopidy.com/steveof2620/32/1927_2.png) [@steveof2620](https://discourse.mopidy.com/u/steveof2620)
#### Post date: [February 8, 2021, 7:44am UTC](https://discourse.mopidy.com/t/mopidy-startup-error-macos-10-15-4/3942/3 "2021-02-08T07:44:36Z")

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> [@agb95](#):
>
> Error: invalid option: --without-python

I have the same issue. Did you resolve it in the end?