Illegal argument exception

Question

I need some help here!

https://stackoverflow.com/questions/55842522/java-lang-illegalargumentexception-while-authentication-using-firebase

Answer 1

Did you give permission to you application to get number information from The device? It might be stupid but that happens sometime. I prefer bypassing these steps by giving default information.

Answer 2

Melih Melik Sonmez
Well can you explain about permission