Android Proguard ClassNotFoundException

Test environment

Unity 2021.f

Android

If obfuscated using R8 or Proguard

Runtime Log

AndroidJavaException: java.lang.ClassNotFoundException: com.universal.sdk.unitywrapper.UniversalSDKWrapper

Solution

After checking Custom Proguard File as follows, (Project Settings > Player > Publishing Settings > Custom Proguard file)

Please add -kepp class com.universal.sdk.unitywrapper.** {*;} to proguard-user.txt