Firebase Database connection was forcefully killed by the server

[filipatbnp]

readme for database
https://github.com/firebase/quickstart-android/blob/master/database/README.md
does not mention anything about creating realtime database

if not - app quietly does nothing (it does not work but you have to be logcat-proficient to know why)

pc_0 - Firebase Database connection was forcefully killed by the server. Will not attempt reconnect. Reason: Firebase error. Please ensure that you have the URL of your Firebase Realtime Database instance configured correctly.

[google-oss-bot]

This issue does not seem to follow the issue template. Make sure you provide all the required information.