Unresolved class name proguard-rules Android Studio 4.0

Solution 1:

Check this issue: https://issuetracker.google.com/issues/147802433

`If you right-click on error, there is option "suppress for statement", after that AS adds a comment such as:

noinspection ShrinkerUnresolvedReference

-keep class not.existing

And with this comment there is no error for "not.existing".`

Solution 2:

Replace .** with ** as workaround. No compile error and classes are kept.

-keep class com.squareup.haha** { *; }
-keep class com.squareup.leakcanary** { *; }

Solution 3:

This issue is fixed in Android Studio 4.2 Canary 8. Please find the release notes here https://androidstudio.googleblog.com/2020/08/android-studio-42-canary-8-available.html and check for this issue id #153616200

Solution 4:

A folder and its subfile. I have tested this:

com.xx.xx.* { *; }   

I guess that it may contain multiply folders and subfile. I've not tested this:

com.xx.xx.**.* {*;}