Error #1009

[th3w0lf3]

New to AS3. Actually following a tutorial by iBrent (https://www.youtube.com/watch?v=HFfsiqBJbe8).
My code matches up with his, and I have done a lot of research before resorting to making yet another #1009 thread.

package  {
	
	import flash.display.MovieClip;
	import flash.events.MouseEvent;
	
	
	public class AtmoApp extends MovieClip {
		
		
		public function AtmoApp() {
			init();
		}
		
		private function init():void
		{
			movers.addEventListener(MouseEvent.CLICK, handleButtonClicks);
			conventionals.addEventListener(MouseEvent.CLICK, handleButtonClicks);
		}
		
		private function handleButtonClicks(event:MouseEvent):void
		{
			trace("You clicked the: " + event.currentTarget.name);
		}
		
	}
	
}

Thanks for your help.

[Northcode]

Add a trace message to spit out the values of "movers" and "conventionals" before they are used in the init function. My guess is that one of them is going o be null.