OneSignal - Google Play Services Library Error
Google Play services library initialization error. Check for conflicting plugins and make sure “com.google.android.gms.version” is in your AndroidManifest.xml. Check the logcat for more details.
Next time please use search. This is a known bug after Kodular’s latest release targeting api 30, waiting for a fix.
Haven’t tried any
This was proposed as a temporarily solution, haven’t tested,don’t know if or how it works
You could use APK Editor Studio, decompile apk, edit androidmanifest.xml and decompile apk. After that you have to convert/modify apk into aab file in order to target api 30 again using procedure posted below, if you wish to upload app to Play Store. Haven’t tested it to see if onesignal works after the convertion to api 30