title: NotificationCompat.Builder missing build() method
body: <p>I want to do exactly, what he does: <a href="https://stackoverflow.com/questions/17053996/android-notification-at-time">Android Notification at time</a> 
  But in my AlarmReceiver class, I have an error: The method build() is undefined for the type NotificationCompat.Builder, at line: mNotificationManager.notify(1, mBuilder.build());</p>
  
  <p>In android developer site is a similar code, but the same error appears(<a href="http://developer.android.com/training/notify-user/build-notification.html" rel="nofollow noreferrer">http://developer.android.com/training/notify-user/build-notification.html</a>).</p>
  
  <p>Any help is greatly appreciated.</p>