My app stops whenever I try to run it...

Here is what I get when it closes:

10-11 11:34:35.347 1301-1301/com.example.zacharygassem.blinker E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: com.example.zacharygassem.blinker, PID: 1301 java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list' at android.support.v4.app.ListFragment.ensureList(ListFragment.java:344) at android.support.v4.app.ListFragment.onViewCreated(ListFragment.java:145) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:956) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1121) at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682) at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1484) at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:482) at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141) at android.support.v4.view.ViewPager.populate(ViewPager.java:1073) at android.support.v4.view.ViewPager.populate(ViewPager.java:919) at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441) at android.view.View.measure(View.java:16497) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125) at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) at android.view.View.measure(View.java:16497) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125) at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:327) at android.view.View.measure(View.java:16497) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125) at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2291) at android.view.View.measure(View.java:16497) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1916) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1113) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1295) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761) at android.view.Choreographer.doCallbacks(Choreographer.java:574) at android.view.Choreographer.doFrame(Choreographer.java:544) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747) at android.os.Handler.handleCallback(Handler.java:733) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5017) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) at dalvik.system.NativeStart.main(Native Method)