Error Render problem and Failed to instantiate one or more classes

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I have a problem that I can not solve for a few days.

The following classes could not be instantiated: - android.support.v7.widget.ActionBarContainer (Open Class, Show Exception, Clear Cache) - android.support.v7.widget.ActionBarContextView (Open Class, Show Exception, Clear Cache) - android.support.v7.app.WindowDecorActionBar (Open Class, Show Exception, Clear Cache)  Tip: Use View.isInEditMode () in your custom views to skip or show sample data when shown in the IDE. If this is an error you can also try to build the project, then manually refresh the layout. Exception Details java.lang.ClassNotFoundException: android.view.View $ OnUnhandledKeyEventListener Copy stack to clipboard

Failed to load AppCompat ActionBar with unknown error. Tip: Try to refresh the layout.

I do not know what to do with these errors anymore. I've tried everything already.

    
asked by anonymous 16.07.2018 / 16:02

0 answers