Actionscript 3.0 Keyboard event listener error - actionscript-3

Question

I have two functions, rotate and unrotate, and I used a keyboard event listener to listen for key_Down A and B but i get and error:
1119: Access of possibly undefined property A through a reference with static type Class.
ti.border = true
ti.addEventListener(TextEvent.TEXT_INPUT, onInput);
function onInput(event:TextEvent):void {
if(ti.text.search('a')!=-1) load_image("http://i54.tinypic.com/anom5d.png", "ottefct");
else if(ti.text.search('b')!=-1) load_image("http://i53.tinypic.com/2dv7dao.png", "rnd");
else if(ti.text.search('c')!=-1) load_image("http://i51.tinypic.com/m8jp7m.png", "ssd");
}
var loaded_images:Dictionary = new Dictionary();
function load_image(url:String, id_name:String)
{
var loader:Loader = new Loader();
loader.name = id_name;
var url_req:URLRequest = new URLRequest(url);
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onLoadingComplete);
loader.load(url_req);
}
function onLoadingComplete(evt:Event):void
{
var img_name:String = evt.currentTarget.loader.name
var spr_box:Sprite = new Sprite();
spr_box.addChild(evt.currentTarget.loader);
spr_box.mouseChildren = false;
spr_box.doubleClickEnabled = true;
spr_box.addEventListener(MouseEvent.MOUSE_DOWN, drag);
spr_box.addEventListener(MouseEvent.MOUSE_UP, drop);
spr_box.addEventListener(KeyboardEvent.KEY_DOWN, rotate);
spr_box.addEventListener(KeyboardEvent.KEY_DOWN, unrotate);
spr_box.width = 124;
spr_box.height = 180;
spr_box.x = 430;
spr_box.y = 425;
this.addChild(spr_box);
loaded_images[img_name] = spr_box;
}
function drag(evt:MouseEvent):void
{
evt.currentTarget.startDrag()
}
function drop(evt:MouseEvent):void
{
evt.currentTarget.stopDrag()
}
function rotate(evt:KeyboardEvent):void
{
if (evt.keyCode==Keyboard.D) {
evt.currentTarget.rotation = 90
}
}
function unrotate(evt:KeyboardEvent):void
{
if (evt.keyCode==Keyboard.A) {
evt.currentTarget.rotation = 0
}
}

Answer 1

Well - you are only referencing prop A in one spot and its throwing an undefined error. So, either your not linking the Keyboard class properly... or...?
At any rate - you can also use numeric assignment to capture keystrokes. In this case:
function rotate(evt:KeyboardEvent):void
{
if (evt.keyCode == 68) { //"D"
evt.currentTarget.rotation = 90
}
}
function unrotate(evt:KeyboardEvent):void
{
if (evt.keyCode == 65) { //"A"
evt.currentTarget.rotation = 0
}
}
They are all laid out pretty clearly right here.