/Users/runner/work/Neothesia/Neothesia/./.github/actions/macos/action.yml (Line: 7, Col: 9): Required property is missing: shell

/Users/runner/work/Neothesia/Neothesia/./.github/actions/macos/action.yml: (Line: 9, Col: 5, Idx: 197) - (Line: 9, Col: 5, Idx: 197): While parsing a block mapping, did not find expected key.

System.ArgumentException: Unexpected type '' encountered while reading 'action manifest root'. The type 'MappingToken' was expected. at GitHub.DistributedTask.ObjectTemplating.Tokens.TemplateTokenExtensions.AssertMapping(TemplateToken value, String objectDescription) at GitHub.Runner.Worker.ActionManifestManager.Load(IExecutionContext executionContext, String manifestFile)