[android] Android Studio Rendering Problems : The following classes could not be found

I just update Android Studio, and when I restarted it, the preview window rendering failed, and I was told that

The following classes could not be found: - android.support.v7.internal.widget.ActionBarOverlayLayout

If someone can tell me what can I do to fix this rendering problem? Thank you.

This question is related to android android-studio

The answer is

You have to do two things:

  • be sure to have imported right appcompat-v7 library in your project structure -> dependencies
  • change the theme in the preview window to not an AppCompat theme. Try with Holo.light or Holo.dark for example.

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