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

For me changing build tool version to 27.0.2 worked, given that all your other dependencies are API 27 as well.

buildToolsVersion '27.0.2'