Tween и scaleX, scaleY

[ptirA]

var zoomAvailable:Boolean;
 
var myTween_scaleX:Tween;
var myTween_scaleY:Tween;
var myTween_scaleX2:Tween;
var myTween_scaleY2:Tween;
 
function unlockTween(event:TweenEvent):void
{
	zoomAvailable = true;
}
 
function mapScaleIn()
{
	if (!zoomAvailable)
	{
    	return;
	}
 
	myTween_scaleX.addEventListener(TweenEvent.MOTION_FINISH, unlockTween);
	myTween_scaleX2.addEventListener(TweenEvent.MOTION_FINISH, unlockTween);
 
	myTween_scaleX = new Tween(main_mc, "scaleX", Regular.easeIn, mainScaleX, mainScaleXin, 1, true);
	myTween_scaleY = new Tween(main_mc, "scaleY", Regular.easeIn, mainScaleY, mainScaleYin, 1, true);
}
 
function mapScaleOut()
{
	if (!zoomAvailable)
	{
   		return;
	}
 
	myTween_scaleX.addEventListener(TweenEvent.MOTION_FINISH, unlockTween);
	myTween_scaleX2.addEventListener(TweenEvent.MOTION_FINISH, unlockTween);
 
	myTween_scaleX2 = new Tween(main_mc, "scaleX", Regular.easeIn, mainScaleXin, mainScaleX, 1, true);
	myTween_scaleY2 = new Tween(main_mc, "scaleY", Regular.easeIn, mainScaleYin, mainScaleY, 1, true);
}

Ругается на TweenEvent в unlockTween
1046: Type was not found or was not a compile-time constant: TweenEvent.