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Stack Overflow | Yokesh Kdk | 4 months ago
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Root Cause Analysis

  1. java.lang.RuntimeException

    Unable to start activity ComponentInfo{com.example.kyokesh.ams1/com.example.kyokesh.ams1.Signup}: 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.performLaunchActivity(ActivityThread.java:2416) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java)

    at android.app.ActivityThread$H.handleMessage()
  2. Android Platform
    ActivityThread$H.handleMessage
    1. android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
    1 frame