[CS3] flash docs & actionscript 3 examples

[barrjohnm]

Hi, Does naybody elese have problems with the examples in the flash docs?

I am trying to follow one of the examples in the flash docs, but I get an error that I don't understand, and was wondering if I could ask for help on this?
Greeter.as

package{
    public class Greeter{
        /**
         * Defines the names that should receive a proper greeting.
         */
        public static var validNames:Array = ["Sammy", "Frank", "Dean"];

        /**
         * Builds a greeting string using the given name.
         */
        public function sayHello(userName:String = ""):String{
            var greeting:String;
            if (userName == ""){
                greeting = "Hello. Please type your user name, and then press the Enter key.";
            } 
            else if (validName(userName)){
                greeting = "Hello, " + userName + ".";
            } 
            else{
                greeting = "Sorry, " + userName + ", you are not on the list.";
            }
            return greeting;
        }
        
        /**
         * Checks whether a name is in the validNames list.
         */
        public static function validName(inputName:String = ""):Boolean{
            if (validNames.indexOf(inputName) > -1){
                return true;
            } 
            else{
                return false;
            }
        }
    }
} 

HelloWorld.fla
in one text fileds, with instance name "mainText" this is using dynamic text. Below this are text fields
one is a label(user name), the other is a input text filed with instance name textIn. In the first frame in the actions there is

mainText.border = true;
textIn.border = true;

var myGreeter:Greeter = new Greeter();
mainText.text = myGreeter.sayHello("");

textIn.addEventListener(KeyboardEvent.KEY_UP, keyPressed);

function keyPressed(event:Event):void{
    if (event.keyCode == Keyboard.ENTER){
        mainText.text = myGreeter.sayHello(textIn.text);
    }
} 

The issue is with the event.keyCode, which gives me the error,"1119: Access of possibly undefined property keyCode through a reference with static type flash.events:Event.