Authentication V2: "status": "UNAUTHENTICATED"

Unable to get access

 constructor(props) {
        super(props);

        Dialogflow_V2.setConfiguration(
            "[e-mail]",
            '-----BEGIN PRIVATE KEY-----\nMIIEvgIBADAN...1oqO\n-----END PRIVATE KEY-----\n',
            Dialogflow_V2.LANG_ENGLISH_US,
            'testv2-3b5ca'
        );
    }

componentDidMount(){
  Dialogflow_V2.requestQuery("Some text for your Dialogflow agent", result=>console.log(result), error=>console.log(error));
}

error recieved: {“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”}}

[lewismclennan]

I’ve tried generating new service accounts and making sure the API is enabled on the project. Any idea what could be causing this?

[shakshakeeb]

Hello, has anyone figured this out? I’m facing the same problem and have been stuck on this for weeks