This error only occurs when I set the firbasedatabase rules to true
{ “rules”: { “.read”: “auth != true”, “.write”: “auth != true” } }
My application error
java.lang.NullPointerException:
Attempt to invoke virtual method ‘java.lang.String java.lang.Object.toString()’ on a null object reference at
com.krustoon.done. HomeActivity $41.0 nDataChange (HomeActivity.java:1707) at
com.google.firebase.database.Query$1 .onDataChange(com.google.firebase: firebase-database@@19.0.0:179) at
com.google.firebase.database.core.Val ueEventRegistration.fireEvent(com .google.firebase:firebase
-database@@19.0.0:75)
at
com.google.firebase.database.core.vie w.DataEvent.fire(com.google.firebase: firebase-database@@19.0.0:63)
at
com.google.firebase.database.core.vie w.EventRaiser $1.run(com.google firebase:firebase-database@@19.0.0:
at
android.os.Handler.handleCallback(Han dler.java:938) at
android.os.Handler.dispatchMessage(H andler.java:99)
How to solve this error