java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.ricky.comenchat/com.example.ricky.comenchat.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.Context.getPackageName()' on a null object reference

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Root Cause Analysis

  1. java.lang.RuntimeException

    Unable to start activity ComponentInfo{com.example.ricky.comenchat/com.example.ricky.comenchat.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.Context.getPackageName()' on a null object reference

    at android.app.ActivityThread.performLaunchActivity()
  2. Android Platform
    ActivityThread.handleLaunchActivity
    1. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2450)
    2. android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520)
    2 frames