How to fix "Missing classes detected while running R8" error in Android Studio

Detailed explanation was given to fix the android studio error "Missing classes detected while running R8. Please add the missing classes or apply additional keep rules that are generated in .../app/build/outputs/mapping/release/missing_rules.txt." Missing class android.media.LoudnessCodecController$OnLoudnessCodecUpdateListener (referenced from: void com.google.android.gms.internal.ads.zzsj.zzd(int) and 1 other context) Missing class android.media.LoudnessCodecController (referenced from: android.media.LoudnessCodecController com.google.android.gms.internal.ads.zzsj.zzb and 4 other contexts) Android Studio Errors Playlist https://www.youtube.com/playlist?list=PLZpJ0HRAtsgGmWCGZcn5gJhVnWN-bsw4m #androidstudio #error #proguard