Ember Firebase hosting not working correctly

I am attempting to deploy my ember app on Firebase.

I've followed these steps

$ npm install -g firebase-tools
$ ember build --prod
$ firebase login
$ firebase init

however when I visit the URL after I deploy I just get a message saying

Welcome to Firebase Hosting

You're seeing this because you've successfully setup Firebase Hosting. Now it's time to go build something extraordinary!

I now can't even seem to load up my application locally, has anyone seen this before?