java.lang.RuntimeException: Unable to start activity ComponentInfo{gamingproject.sellmybooks/gamingproject.sellmybooks.SendMess}: java.lang.NullPointerException: Can't pass null for argument 'pathString' in child()

Stack Overflow | Carlo | 5 months ago
  1. 0

    Retrieve data from my FirebaseDatabase

    Stack Overflow | 5 months ago | Carlo
    java.lang.RuntimeException: Unable to start activity ComponentInfo{gamingproject.sellmybooks/gamingproject.sellmybooks.SendMess}: java.lang.NullPointerException: Can't pass null for argument 'pathString' in child()
  2. 0

    How can i retrieve child value and pass this value to another query?

    Stack Overflow | 1 month ago | Alex Altieri
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.alex3.prenotazionecampi/com.alex3.prenotazionecampi.Chat_Single_Room}: java.lang.NullPointerException: Can't pass null for argument 'pathString' in child()
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  4. 0

    Firebase auth with email and password NPE

    Stack Overflow | 8 months ago | Rogier van den Brink
    java.lang.NullPointerException: Can't pass null for argument 'email' in authWithPassword()
  5. 0

    GitHub comment 469#166124538

    GitHub | 12 months ago | l3d00m
    java.lang.RuntimeException: An error occured while executing doInBackground()
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Root Cause Analysis

  1. java.lang.NullPointerException

    Can't pass null for argument 'pathString' in child()

    at com.google.firebase.database.DatabaseReference.child()
  2. com.google.firebase
    DatabaseReference.child
    1. com.google.firebase.database.DatabaseReference.child(Unknown Source)
    1 frame
  3. gamingproject.sellmybooks
    SendMess.onCreate
    1. gamingproject.sellmybooks.SendMess.onCreate(SendMess.java:103)
    1 frame
  4. Android Platform
    ActivityThread.performLaunchActivity
    1. android.app.Activity.performCreate(Activity.java:5993)
    2. android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1111)
    3. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2418)
    3 frames