Preloader text error query...

Question

I have written a code that shows no errors when checked however I get an error when the movie is tested:
message:
1061: Call to a possibly undefined method addEventListener through a reference with static type Class.
code:
LoaderInfo.addEventListener(ProgressEvent.PROGRESS, updatePreloader);
function updatePreloader(evtObj:ProgressEvent):void
    //container
    var percent:Number = Math.floor((evtObj.bytesLoaded*100)/evtObj.bytesTotal);
    preloader_txt.text = percent+"%";
    if (percent==100) {
        nextFrame();
my preloader_txt reference is dynamic.....
any thoughts? Thanks!

Answer 1

loaderInfo.addEventListener(ProgressEvent.PROGRESS, updatePreloader);  // <---
function updatePreloader(evtObj:ProgressEvent):void
    //container
    var percent:Number = Math.floor((evtObj.bytesLoaded*100)/evtObj.bytesTotal);
    preloader_txt.text = percent+"%";
    if (percent==100) {
        nextFrame();