Going beyond ‘Hey Google’: building a Rasa-powered Google Assistant

I am also facing same issue. I tried with both Rasa 1.0 and latest one. On rasa getting below error sanic.exceptions.NotFound: Requested URL /webhooks/google_assistant/webhook not found [2019-10-17 10:14:30 +0530] [20879] [ERROR] Exception occurred while handling uri: ‘http://1aa199fe.ngrok.io/webhooks/google_assistant/webhook’