Android studio AssertionError: Don't invoke waitForSmartMode from inside read action in dumb mode

Question

I have been facing this problem since i updated to Android Studio 2.1 RC . A quick google search shows that the problem is being faced by developers using Android Studio 2.1. The issue appeared in April and a solution have not been found yet.

Answer 1

I had the same issue. I fixed it with:
1. Build, Clean project.
2. Build, Build APK.
3. Build, Generate Signed APK