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

GitHub | jsarabia1247 | 3 months ago
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    Check if you imported android.support.v4.app.FragmentManager and not android.app.FragmentManager. Check for naming problems in your xml files as well, might have inconsistencies!
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    15666666666

    GitHub | 3 months ago | jsarabia1247
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.Object.equals(java.lang.Object)' on a null object reference
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    15666666666

    GitHub | 3 months ago | jsarabia1247
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.Object.equals(java.lang.Object)' on a null object reference
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Root Cause Analysis

  1. java.lang.NullPointerException

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

    at android.widget.AdapterView.getPositionForView()
  2. Android Platform
    ActivityThread.main
    1. android.widget.AdapterView.getPositionForView(AdapterView.java:607)
    2. android.view.ViewDebug$4.run(ViewDebug.java:836)
    3. android.os.Handler.handleCallback(Handler.java:756)
    4. android.os.Handler.dispatchMessage(Handler.java:95)
    5. android.os.Looper.loop(Looper.java:135)
    6. android.app.ActivityThread.main(ActivityThread.java:5263)
    6 frames
  3. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Native Method)
    2. java.lang.reflect.Method.invoke(Method.java:372)
    2 frames
  4. Android
    ZygoteInit.main
    1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
    2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
    2 frames