Google auth error

[pietronaccari]

The login with google fails, you should update the call to the Google auth API.

google.auth.exceptions.RefreshError: ('invalid_grant: Bad Request', {'error': 'invalid_grant', 'error_description': 'Bad Request'})

[NicholasDawson]

If this is a better implementation please submit a PR

[steveny2k]

I also encounter this issue now. It shows error: raise exceptions.RefreshError(error_details, response_data)
google.auth.exceptions.RefreshError: ('invalid_grant: Bad Request', {'error': 'invalid_grant', 'error_description': 'Bad Request'})

when starting.