IndexNotReadyException - Android Studio

Question

While changing the values of a widget in properties tab, AndroidStudio keeps on throwing IndexNotReadyException. But afte

Answer 1

I faced the same problem and found solution according to this, I have changed the API level 22 to 21, problem solved.

API Level for XML layout was set **Automatically Pick Best ** which was API 22

And I change this API 22 to API 21:

and the exception removed.

Hope this help. Thanks