python – Google Cloud – oauth2client.client.HttpAccess

我在尝试执行Google Prediction API时收到此错误消息.

raise HttpAccessTokenRefreshError(error_msg,status=resp.status)
oauth2client.client.HttpAccessTokenRefreshError: invalid_grant

我的凭证详情

{
    "scopes": [],"private_key": "XXXXX","id_token": null,"token_uri": "https://accounts.google.com/o/oauth2/token","token_info_uri": null,"token_response": null,"client_id": null,"scope": "https://www.googleapis.com/auth/prediction https://www.googleapis.com/auth/devstorage.read_only","token_expiry": null,"_class": "SignedJwtAssertionCredentials","refresh_token": null,"_module": "oauth2client.client","private_key_password": "notasecret","access_token": null,"service_account_name": "account-1@myapp-1136.iam.gserviceaccount.com","invalid": false,"assertion_type": null,"kwargs": {},"client_secret": null,"revoke_uri": "https://accounts.google.com/o/oauth2/revoke","user_agent": null
}