Layout preview rendering problems in android studio(Android Studio 1.2)

Question

I have the following error in my preview window in the latest version of Android Studio (1.2) that stops me from being able to view the layout I am creating

Answer 1

The easiest way would be to change the theme of the application by clicking AppTheme.

This does not need to change anything in the code.

I attach the image below

AppTheme example of solution render problem android studio