The layout in layout has no declaration in the base layout folder [error]

Question

After migrating to Android Studio 3.2, API 28, I am getting the following error on my app\'s layout:

The layout in layout has no declaration in the base lay

Answer 1

I received this error when moving layout files between Gradle modules. I didn't have to go so far as to invalidate caches as it resolved itself when I restarted Android Studio and cleaned the project. It seems likely to be an IDE bug.