React Native login With Facebook using Firebase

getting error given url is not allowed by the application configuration in facebook after username and passwrd ??

Sound in background is a little disturbing .

Thank you so much 💌

When clicking on save on facebook developer console
It is showing
One or more invalid package names. Make sure package names are associated with a valid googlr play service url

music way too loud!

One or more invalid package names. Make sure that the package name links to a valid Google Play Store URL.

To the point tutorial 👍