enable Annotation Processors option in Android Studio 2.2

Question

I\'m trying to use java 8 in my project and for that I added the jack compiler.

After enabling jack I started having problems with libraries that use Annotation Proc

Answer 1

Adding to @Jacques Koorts and @mtrakal

If you can't get to the "Welcome to Android Studio" screen. Try File -> Close Project instead of clicking the X icon. Then you'll get the "Welcome to Android Studio" screen and you'll see the gear in the bottom right. Follow the accepted answer after that and possibly the cache invalidation.