java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference

Stack Overflow | Asmi | 3 months ago
  1. 0

    Error with progress dialog

    Stack Overflow | 3 months ago | Asmi
    java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference
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    Unable to click on ListPreference Dialog in PreferenceFragment

    Stack Overflow | 4 months ago | michalsol
    java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference
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  4. 0

    caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void ... on a null object reference

    Stack Overflow | 2 years ago | Red_X
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.capstone.medicinehealthguide/com.capstone.medicinehealthguide.MenuListActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference
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    create three elements in adapter

    Stack Overflow | 1 year ago | Cheng
    java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference

      at com.android.internal.app.AlertController.setupView()
    2. Android
      AlertController.installContent
      1. com.android.internal.app.AlertController.setupView(AlertController.java:489)
      2. com.android.internal.app.AlertController.installContent(AlertController.java:234)
      2 frames
    3. Android Platform
      Dialog.show
      1. android.app.AlertDialog.onCreate(AlertDialog.java:423)
      2. android.app.ProgressDialog.onCreate(ProgressDialog.java:198)
      3. android.app.Dialog.dispatchOnCreate(Dialog.java:394)
      4. android.app.Dialog.show(Dialog.java:295)
      4 frames