java.lang.NullPointerException

Stack Overflow | pavlenis1906 | 2 months ago
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    Stack Overflow | 2 months ago | pavlenis1906
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    Stack Overflow | 2 months ago | pavlenis1906
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.pavle.usbotgenabler/com.example.pavle.usbotgenabler.otg_enaber.OTGEnabler}: 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.

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.example.pavle.dayofborn.MainActivity$2.onClick()
    2. com.example.pavle
      MainActivity$2.onClick
      1. com.example.pavle.dayofborn.MainActivity$2.onClick(MainActivity.java:230)
      1 frame
    3. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:4633)
      2. android.view.View$PerformClick.run(View.java:19270)
      3. android.os.Handler.handleCallback(Handler.java:733)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:136)
      6. android.app.ActivityThread.main(ActivityThread.java:5476)
      6 frames
    4. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invokeNative(Native Method)
      2. java.lang.reflect.Method.invoke(Method.java:515)
      2 frames
    5. Android
      ZygoteInit.main
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
      2 frames
    6. Android Platform
      NativeStart.main
      1. dalvik.system.NativeStart.main(Native Method)
      1 frame