Possible misuse of evt.target.name. "Error #1010: A term is undefined and has no properties." - actionscript-3

Question

So far this program is supposed to make an child object visible when the parent object is moused over, but I can't seem to get it to work. I'm in a little over my head here. Here's my code:
var iconCompArray:Array = new Array();
stage.addEventListener(MouseEvent.MOUSE_MOVE, moveMouse);
addIcons();
function addIcons():void
{
var iconComp:IconComp = new IconComp();
iconComp.x = stage.stageWidth/4;
iconComp.y = stage.stageHeight/4;
iconComp.iconImage.gotoAndStop(2);
iconComp.iconHighlight.visible = false;
iconComp.iconTitle.text = "Program X";
iconCompArray.push(iconComp);
addChild(iconComp);
}
function moveMouse(evt:MouseEvent):void
{
for (var i:int = 0; i < iconCompArray.length; i++)
{
if (evt.target.name == iconCompArray[i])
{
iconCompArray[i].iconHighlight.visible = true;
}
}
}
A new "iconComp" is pulled from the library and added to the stage through the iconCompArray. The idea was that when you mouse over the icon, a blue box would appear around it (iconHighlight.visible). But for some reason, what I have here doesn't work. I think I may have used evt.target.name incorrectly but I can't find a solution. Here's the error message that appears in the output:
TypeError: Error #1010: A term is undefined and has no properties.
at as3_fla::MainTimeline/addIcons()
at as3_fla::MainTimeline/frame1()

Answer 1

From the error you get the problem seems to be in the addIcons functions. You should check that the name of all your movie clip's childs is correct. The movie clip's property mouseChildren should be set to false. Also, it would be probably better if you use MOUSE_OVER and MOUSE_OUT events instead of MOUSE_MOVE.
function addIcons():void
{
var iconComp:IconComp = new IconComp();
iconComp.x = stage.stageWidth / 4;
iconComp.y = stage.stageHeight / 4;
iconComp.iconImage.gotoAndStop(2);
iconComp.iconHighlight.visible = false;
iconComp.iconTitle.text = "Program X";
iconComp.mouseChildren = false;
iconComp.addEventListener(MouseEvent.MOUSE_OVER, onIconOver);
iconComp.addEventListener(MouseEvent.MOUSE_OUT, onIconOut);
iconCompArray.push(iconComp);
addChild(iconComp);
}
And the event listeners should look like this:
function onIconOver(evt:MouseEvent):void {
IconComp(evt.target).iconHighlight.visible = true;
}
function onIconOut(evt:MouseEvent):void {
IconComp(evt.target).iconHighlight.visible = false;
}
You can also see the line of code that gives you that error if youy publish the swf in debug mode (Ctrl+Shift+Enter).