No 'version' key in the manifest file for custom integration 'swiftcommand'

[nsolvepaul]

Logger: homeassistant.loader
Source: loader.py:794
First occurred: 8:48:11 (1 occurrences)
Last logged: 8:48:11

No 'version' key in the manifest file for custom integration 'swiftcommand'. As of Home Assistant 2021.6, this integration will no longer be loaded. Please report this to the maintainer of 'swiftcommand'

[4w00g4]

I tried to fork and add "version": "1.1.1" to the manifest but it still wouldn't install. The error I get is "The version for this integration can not be used with HACS".

Any luck resolving the problem as I'd like to use this integration.