- android.support.design.widget.CoordinatorLayout (Open Class, Show Exception, Clear Cache)
- android.support.design.widget.AppBarLayout (Open Class, Show Exception, Clear Cache)

Exception Details java.lang.IllegalArgumentException: You need to use a Theme.AppCompat theme (or descendant) with the design library.   at android.support.design.widget.ThemeUtils.checkAppCompatTheme(ThemeUtils.java:34)   at android.support.design.widget.CoordinatorLayout.<init>(CoordinatorLayout.java:178)   at android.support.design.widget.CoordinatorLayout.<init>(CoordinatorLayout.java:172)   at java.lang.reflect.Constructor.newInstance(Constructor.java:422)   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)   at android.view.LayoutInflater.inflate(LayoutInflater.java:492)   at android.view.LayoutInflater.inflate(LayoutInflater.java:394) Copy stack to clipboard  The surrounding layout (@layout/activity_main) did not actually include this layout. Remove tools:showIn=... from the root tag.