java.lang.RuntimeException: Unable to start activity ComponentInfo{probypro.posv2/probypro.posv2.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'probypro.posv2.Bill probypro.posv2.DatabaseHelper.getBill(long)' on a null object reference

Stack Overflow | Bayu Wibawa | 2 months ago
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Root Cause Analysis

  1. java.lang.RuntimeException

    Unable to start activity ComponentInfo{probypro.posv2/probypro.posv2.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'probypro.posv2.Bill probypro.posv2.DatabaseHelper.getBill(long)' on a null object reference

    at android.app.ActivityThread.performLaunchActivity()
  2. Android Platform
    ActivityThread.handleLaunchActivity
    1. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
    2. android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
    2 frames