Android Studio 2.1 Cannot resolve symbol 'R'

Question

Android Studio 2.1, Java V8 Update 91, Gradle 2.1.0 .

I know that this questions has been asked many times here, but none of the recommendation solutions works out.

Answer 1

Have you tried Rebuild Project go to Build> Rebuild Project and perform it without doing the Clean project I had the same problem & it worked for me