proguardRelease FAILED when compiling apk with assembleRelease in Android Studio

Question

I\'m trying to compile my app as assembleRelease in Android Studio 1.0.1 and get the following message:

FAILURE: Build failed with an exception.

* What went         


        

Answer 1

I had the same problem with Gradle 1.1.0. It remembered some old class references which I have moved, and I couldn't build apk.

Try Build > Clean.

It helped me, and now I can build apk again.