java.lang.RuntimeException: Unable to start activity ComponentInfo{chat.realtimechat/chat.realtimechat.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference

Stack Overflow | Tadas | 6 months ago
tip
Do you know that we can give you better hits? Get more relevant results from Samebug’s stack trace search.
  1. 0

    Uknown null error

    Stack Overflow | 6 months ago | Tadas
    java.lang.RuntimeException: Unable to start activity ComponentInfo{chat.realtimechat/chat.realtimechat.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference

    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference

      at chat.realtimechat.MainActivity.onCreate()
    2. chat.realtimechat
      MainActivity.onCreate
      1. chat.realtimechat.MainActivity.onCreate(MainActivity.java:50)
      1 frame
    3. Android Platform
      ActivityThread.performLaunchActivity
      1. android.app.Activity.performCreate(Activity.java:5937)
      2. android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
      3. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
      3 frames