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Android

Beysim ERYILMAZ
Beysim ERYILMAZ
1,600 Points
Posted by Beysim ERYILMAZ
Beysim ERYILMAZ
1,600 Points

Android studio rendering problem

When i tried to change my android apps theme to Material light i get this problem below.What can i do guys?

Rendering Problems The following classes could not be instantiated: - android.support.design.widget.CoordinatorLayout (Open Class, Show Exception, Clear Cache) Tip: Use View.isInEditMode() in your custom views to skip code or show sample data when shown in the IDE 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:526)   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.

1 Answer

Ben Deitch
STAFF
Ben Deitch
Treehouse Teacher
Ben Deitch
Ben Deitch
Treehouse Teacher

The error suggests, "You need to use a Theme.AppCompat theme (or descendant) with the design library.". I'm guessing you're trying to use a Material theme on a device that's not on a new enough version of Android.