Plex assistant integration install error

[jimmydevine]

I've copied the plex_assistant directory under custom_components into my ~/.homeassistant/custom_components directory and started hass. I see plex assistant under integrations now but when I try to add it, this is what I get:

2021-07-29 15:51:40 INFO (SyncWorker_7) [homeassistant.util.package] Attempting install of pychromecast>=8.0.0
2021-07-29 15:51:54 INFO (SyncWorker_3) [homeassistant.util.package] Attempting install of rapidfuzz==1.1.1
2021-07-29 15:53:04 INFO (SyncWorker_55) [homeassistant.util.package] Attempting install of plexapi>=4.3.0
2021-07-29 15:53:17 INFO (SyncWorker_29) [homeassistant.util.package] Attempting install of awesomeversion>=21.2.2
2021-07-29 15:53:23 ERROR (MainThread) [homeassistant.config_entries] Error occurred loading configuration flow for integration plex_assistant: cannot import name 'MESSAGE_TYPE' from 'pychromecast.const' (/home/hass/hass/lib/python3.7/site-packages/pychromecast/const.py)

[github-actions]

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