Error : Ambiguous method call. Both findViewById (int) in AppCompactActivity and Activity

Question

I am getting the error: \"Ambiguous method call\" on initializing Toolbar using Android Studio 3.0 RC1. I have extended my Activity with AppCompatActivity and compiling my appli

Answer 1

You have

import android.support.v7.app.AppCompatActivity
import android.app.Activity

both in your code. Remove import android.app.Activity as I can see, it's not required for you.