Action failed with error: Error: Unable to locate executable file: cachix. Please verify either the file path exists or the file can be found within a directory specified by the PATH environment variable. Also check the file mode to verify the file is executable.

Unexpected input(s) 'skipAddingSubstituter', valid inputs are ['name', 'extraPullNames', 'authToken', 'signingKey', 'skipPush', 'pathsToPush', 'pushFilter', 'cachixArgs', 'installCommand']