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

Stack Overflow | rayan | 1 month ago
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    Stack Overflow | 1 month ago | rayan
    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 android.app.ActivityThread.deliverResults()
  2. Android Platform
    ActivityThread.handleSendResult
    1. android.app.ActivityThread.deliverResults(ActivityThread.java:3699)
    2. android.app.ActivityThread.handleSendResult(ActivityThread.java:3742)
    2 frames