java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference

GitHub | tedder | 8 months ago
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  1. 0

    GitHub comment 146#245360579

    GitHub | 8 months ago | tedder
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference
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    need some help?!!!! | Treehouse Community

    teamtreehouse.com | 2 years ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference
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Root Cause Analysis

  1. java.lang.NullPointerException

    Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference

    at android.widget.ArrayAdapter.createViewFromResource()
  2. Android Platform
    View.measure
    1. android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:409)
    2. android.widget.ArrayAdapter.getView(ArrayAdapter.java:371)
    3. android.widget.AbsListView.obtainView(AbsListView.java:2360)
    4. android.widget.ListView.measureHeightOfChildren(ListView.java:1326)
    5. android.widget.ListView.onMeasure(ListView.java:1233)
    6. android.view.View.measure(View.java:19730)
    7. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
    8. android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
    9. android.view.View.measure(View.java:19730)
    9 frames
  3. Android
    AlertDialogLayout.onMeasure
    1. com.android.internal.widget.AlertDialogLayout.tryOnMeasure(AlertDialogLayout.java:142)
    2. com.android.internal.widget.AlertDialogLayout.onMeasure(AlertDialogLayout.java:67)
    2 frames
  4. Android Platform
    FrameLayout.onMeasure
    1. android.view.View.measure(View.java:19730)
    2. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
    3. android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
    4. android.view.View.measure(View.java:19730)
    5. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
    6. android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
    7. android.view.View.measure(View.java:19730)
    8. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
    9. android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
    9 frames
  5. Android
    DecorView.onMeasure
    1. com.android.internal.policy.DecorView.onMeasure(DecorView.java:687)
    1 frame
  6. Android Platform
    ActivityThread.main
    1. android.view.View.measure(View.java:19730)
    2. android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2271)
    3. android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1331)
    4. android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1607)
    5. android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1246)
    6. android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6301)
    7. android.view.Choreographer$CallbackRecord.run(Choreographer.java:871)
    8. android.view.Choreographer.doCallbacks(Choreographer.java:683)
    9. android.view.Choreographer.doFrame(Choreographer.java:619)
    10. android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:857)
    11. android.os.Handler.handleCallback(Handler.java:751)
    12. android.os.Handler.dispatchMessage(Handler.java:95)
    13. android.os.Looper.loop(Looper.java:154)
    14. android.app.ActivityThread.main(ActivityThread.java:6077)
    14 frames
  7. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Native Method)
    1 frame
  8. Android
    ZygoteInit.main
    1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
    2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
    2 frames