Execution failed for task ':app:dataBindingGenBaseClassesDebug'. Error after upgrading to Android Studio 3.2.1

Question

I got the error after making the project:

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task \':app:dataBindingGenBase

Answer 1

I had the same error at build time and it was caused by a binding variable (that declared inside with a Java reserved word as name. For instance