Why show custom firebase host you must first set authentication server before using authetication feature?

[Mehedi_Hassain]

I am using firebase authentication the show me this notification but all works smoothly but only pop up this notification.

How hide it or solve this bug ?

[riadaska (Ria Das)]

Firebase error : for a custom firebase host you must first set your authentication server

Firebase’s realtime database location must be us-central1. Since you can not change location to an existing project, create a new project in firebase and set location to us-central1