Fix problem in Android / Java code : ActionBar NULL error

Hello, I want to learn Android Development and I try to create a very simple Android App using Android Studio 1.1 All I want to do is to add an "Action Bar" to my app. That Actionbar should contain a simple text and a textview that I want to use as a countdowntimer display. And maybe also an icon. I dont know why because I think that I use a correct theme and API Level 19 - but I always get a NULL error here : [login to view URL] : @Override protected void onCreate(Bundle savedInstanceState) { [login to view URL](savedInstanceState); setContentView(R.layout.activity_main); // experiment with the ActionBar ActionBar myActionBar = getActionBar(); [login to view URL]("myTitle"); // <--- NULL Pointer Exception So obviously there is no Actionbar available. Emulator uses Nexus S 4.0" , resolution 480x800 All Stettings in Android Studio are default. So here is what I need: Download the ZIP, it contains the complete Android Studio project Correct the source so that an ActionBar is shown and send me back correct source code, perfect would be a Studio Project. And I need information what you did and why I had this problem.