com.google.firebase.database.DatabaseException: Converting to Arrays is not supported, please use Listsinstead


Samebug tips1

Firebase Database considers public fields and JavaBean-like getters and setters when serializing/deserializing JSON. A public field with a getter and a setter may cause this exception. Try to change to private or removing getter and setter.


8 months ago
Expert tip

Solutions on the web2

Solution icon of stackoverflow
Converting to Arrays is not supported, please use Listsinstead

Solution icon of stackoverflow
Class java.util.Map has generic type parameters, please use GenericTypeIndicator instead

Stack trace

com.google.firebase.database.DatabaseException: Converting to Arrays is not supported, please use Listsinstead
	at com.google.android.gms.internal.zzaix.zzb(Unknown Source)
	at com.google.android.gms.internal.zzaix.zza(Unknown Source)
	at com.google.android.gms.internal.zzaix.zzb(Unknown Source)
	at com.google.android.gms.internal.zzaix$zza.zze(Unknown Source)
	at com.google.android.gms.internal.zzaix$zza.zzaC(Unknown Source)
	at com.google.android.gms.internal.zzaix.zzd(Unknown Source)
	at com.google.android.gms.internal.zzaix.zzb(Unknown Source)
	at com.google.android.gms.internal.zzaix.zza(Unknown Source)
	at com.google.firebase.database.DataSnapshot.getValue(Unknown Source)
	at com.potenza_pvt_ltd.AAPS.ExitReceipt$7.onChildAdded(ExitReceipt.java:322)
	at com.google.android.gms.internal.zzaer.zza(Unknown Source)
	at com.google.android.gms.internal.zzagp.zzSu(Unknown Source)
	at com.google.android.gms.internal.zzags$1.run(Unknown Source)
	at android.os.Handler.handleCallback(Handler.java:739)
	at android.os.Handler.dispatchMessage(Handler.java:95)
	at android.os.Looper.loop(Looper.java:148)
	at android.app.ActivityThread.main(ActivityThread.java:5461)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

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