UNSOLVED Problem Google Assistant related device

[warbae]

Hello,

I use the module MMM-AssistanceMk2, i want to use it with the app (google home) in my app but when i try to configure it have this error :

{
  "error": {
    "code": 401,
    "message": "Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.",
    "status": "UNAUTHENTICATED"
  }
}

Can you help me ? Thank you very much !

[A Former User]

@warbae
Your credential file might be made wrongly. Follow the instruction carefully again.