Firebase Databseerror Only After App Is Relesased To Google Play - Android

I'm making an app that uses the firebase database. My app was working with no crashes, until I released it as beta on google play. When I released the app it kept crashing and retu

Solution 1:

The POJO getter/setter methods must be public:

publicclassCardSet {

    privateString name;

    privateArrayList<String> words;

    publicCardSet(String name, ArrayList<String> words){
        this.name = name;
        this.words = words;
    }

    publicStringgetName() {  // changed from protectedreturn name;
    }

    publicArrayList<String> getWords(){  // changed from protectedreturn words;
    }

}

And when building for release with minifyEnabled, Proguard must be configured to retain POJO classes. This is described in the Realtime Database for Android Setup Guide:

# Add this global rule
-keepattributes Signature

# This rule will properly ProGuard all the model classes in# the package aheschl.studyup.
-keepclassmembers classaheschl.studyup.** {
  *;
}