Failed to instantiate on or more classes Launcher3 open-source

I am using the open-source of launcher3, in launcher.xml the error: Failed to instantiate on or more classes

The following classes could not be instantiated  -com.android.launcher3.Hotseat (Open Class, Show Exception, Clear Cache) -com.android.launcher3.DeleteDropTarget (Open Class, Show Exception, Clear Cache) -com.android.launcher3.InfoDropTarget (Open Class, Show Exception, Clear Cache) -com.android.launcher3.Workspace (Open Class, Show Exception, Clear Cache) -com.android.launcher3.CellLayout (Open Class, Show Exception, Clear Cache) -com.android.launcher3.Pageindicators.PageIndicatorLinecaret (Open Class, Show Exception, Clear Cache) -com.android.launcher3.UninstallDropTarget (Open Class, Show Exception, Clear Cache)  Tip: Use View.isInEditMode() in your custom views to skip code or show sample data when shown IDE  If this in an unexpected error you can try to build the project, then manually refresh the layout  Exception Details java.lang.ClassNotFoundException: android.appwidget.AppWidgetHost (Copy stack to clipboard) 

and Layout fidelity warning are appearing (disabling the IDE for showing the layout)

The graphics preview in the layout editor may not be accurate:  -Paint.setShadowLayer is not supported (Ignore for this session) 

I have tried: clearing cache, refreshing the layout, Invalidate cache and restart, ensuring manually of the existence to the classes by opening them

Any needed additional info are welcomed for sure

Thanks in advance

0 Answers

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