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

For me the following steps made it work:

1. Cut all the code out of the page (ctrl+A+X for windows)
2. Paste the code back.