Caller must be the parent

1

here is my set up :
when health gets to 0 the view class sets it gameOver to true.
the parent(named application) hears this and wants to remove the child view.

i get the error:

ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.

here’s the application class


		private function init(e:Event = null):void 
		{
			removeEventListener(Event.ADDED_TO_STAGE, init);
			addEventListener(Event.ENTER_FRAME,enterFrameHandler);
			
			addChild(_view);
			
		}
		
		private function enterFrameHandler(e:Event):void 
		{
			if(_view.gameOver==true)
			{
				trace("gameOverFromApplication");
				removeTheView();
			}
			_model.update();
			_view.keyPollUpdate();
		}
		private function gameOverHandler():void
		{
			trace("gameOverHandler");
		}
		private function removeTheView():void
		{
			this.removeChild(_view);
		}

i’m not understanding this