Some parts were deleted in my project after the update

[Ajdeveloper]

Android Builder Beta 2.0 Last Update ChangeLogs

#Patch1 Update On BuildServer And Companion Fix Notification Style Not Visible Added Recycle View Library, so remove the external extension to avoid build failure. Important Clear Your Browser Cache Before Use Builder Link Download New Companion Link 2.0.7 Team android builder

Now test your project again.