I get this error in my project on Android Studio when trying using Android Wear:

> 
> The following classes could not be found:
> 
> 
> - android.support.wearable.view.WatchViewStub (Fix Build Path, Create Class)
> 
> 
> 

Which causes those errors:

> 
> Error:(2) No resource identifier found for attribute 'rectLayout' in
>  package... 
> 
> 
> Error:(2) No resource identifier found for attribute
>  'roundLayout' in package...
> 
> 
> 

How could I fix this? thanks!