java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

Stack Overflow | Olesya | 2 years ago
  1. 0

    Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

    ezeenow.com | 8 months ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
  2. 0

    Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference - scriptscoop.com

    scriptscoop.com | 1 year ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
  3. 0

    Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

    Stack Overflow | 2 years ago | Olesya
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
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  5. 0

    android tests failing because appium's apidemos is crashing

    GitHub | 2 years ago | jlipps
    java.lang.RuntimeException: Unable to start activity ComponentInfo{io.appium.android.apis/io.appium.android.apis.app.StatusBarNotifications}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
  6. 0

    GitHub comment 8#129288636

    GitHub | 1 year ago | agungR
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.cube/com.example.cube.InputActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

      at utanashati.reminder.HomepageActivity.onCreate()
    2. utanashati.reminder
      HomepageActivity.onCreate
      1. utanashati.reminder.HomepageActivity.onCreate(HomepageActivity.java:55)
      1 frame
    3. Android Platform
      ActivityThread.performLaunchActivity
      1. android.app.Activity.performCreate(Activity.java:5990)
      2. android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
      3. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
      3 frames