Android Studio 1.2.1.1 - Failed to find style 'textViewStyle'

Question

I\'m new to Android development and I just installed Android Studio version 1.2.1.1. I created a project, HelloWorld, and chose the default blank activity, Darcula theme, an

Answer 1

Click on "Design" tab

On the right pannel, search for the objet "text" that contains something like "@string/hello_world"

Remove this value from the field

There's no more error.