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Root Cause Analysis

  1. java.lang.RuntimeException

    Unable to start activity ComponentInfo{com.technerdshub.vusocial/com.technerdshub.vusocial.Activities.StudentDashboardActivity}: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead.

    at android.app.ActivityThread.performLaunchActivity()
  2. Android Platform
    ActivityThread.main
    1. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2693)
    2. android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2758)
    3. android.app.ActivityThread.access$900(ActivityThread.java:177)
    4. android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
    5. android.os.Handler.dispatchMessage(Handler.java:102)
    6. android.os.Looper.loop(Looper.java:145)
    7. android.app.ActivityThread.main(ActivityThread.java:5942)
    7 frames
  3. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Native Method)
    2. java.lang.reflect.Method.invoke(Method.java:372)
    2 frames