How to rename a copy of a project in Android Studio?

Question

Android

The same question was asked on the English stack, the sequence of actions was approximately the following:
1. Create a copy of the project using the file manager.
2. Refactor->Rename for the project.
3. Modify Gradle accordingly.
My problems:
1. How and what should be done in Gradle?
2. At the stage of renaming through Refactor, it displays the following in the EventLog:
-

11:40:58 Unsupported Modules Detected: Compilation is not supported for following modules: H0001 Practise. Unfortunately you can't have non-Gradle Java modules and Android-Gradle modules in one project.
11:40:58 Gradle sync started
11:41:02 Gradle sync completed
11:41:02 Executing tasks: [:app:generateDebugSources, :app:generateDebugAndroidTestSources]
11:41:03 Gradle build finished in 1s 579ms
11:41:25 Throwable: Merged rootsChanged not allowed inside rootsChanged, rootsChanged level == 1