Countdown Timer Error Msg: "Warning: 1090: Migration issue"

Question

Hey folks,
New to Flash here (using CS3), trying to create a countdown
timer.
Following is the error message I receive when trying to test
the
movie:
"Warning: 1090: Migration issue: The onEnterFrame is not
triggered
automatically by Flash Player at run time in ActionScript
3.0. You
must first register this handler for the event using
addEventListener
( 'enterFrame', callback_handler).
Does anyone know what this means? And please "dumb it down"
for this newbie. :)
Following is the actionscript I'm using:
this.onEnterFrame = function() {
var today:Date = new Date();
var currentYear = today.getFullYear();
var currentTime = today.getTime();
var targetDate:Date = new Date(2007,5,10);
var targetTime = targetDate.getTime();
var timeLeft = targetTime - currentTime;
var sec = Math.floor(timeLeft/1000);
var min = Math.floor(sec/60);
var hrs = Math.floor(min/60);
var days = Math.floor(hrs/24);
sec = String(sec % 60);
if (sec.length < 2) {
sec = "0" + sec;
min = String(min % 60);
if (min.length < 2) {
min = "0" + min;
hrs = String(hrs % 24);
if (hrs.length < 2) {
hrs = "0" + hrs;
days = String(days);
var counter:String = days + ":" + hrs + ":" + min + ":" +
sec;
time_txt.text = counter;
Thanks in advance!!!

Answer 1

It just means that you can't do things the "old" way. You
have to use the
AS3 event model, like so:
this.addEventListener("enterFrame", enterFrameHandler);
function enterFrameHandler(evt:Event) {
var today:Date = new Date();
var currentYear = today.getFullYear();
var currentTime = today.getTime();
var targetDate:Date = new Date(2007,5,10);
var targetTime = targetDate.getTime();
var timeLeft = targetTime - currentTime;
var sec = Math.floor(timeLeft/1000);
var min = Math.floor(sec/60);
var hrs = Math.floor(min/60);
var days = Math.floor(hrs/24);
sec = String(sec % 60);
if (sec.length < 2) {
sec = "0" + sec;
min = String(min % 60);
if (min.length < 2) {
min = "0" + min;
hrs = String(hrs % 24);
if (hrs.length < 2) {
hrs = "0" + hrs;
days = String(days);
var counter:String = days + ":" + hrs + ":" + min + ":" +
sec;
time_txt.text = counter;