Error 1006: removeEventListener in not...

1. import flash.display.StageScaleMode;
   import flash.display.StageAlign;
2. 
   
3. stage.scaleMode = StageScaleMode.NO_SCALE;
4. 
   
5. function loading2(e:Event):void {
6. 
   
7. ?var total : Number = this.stage.loaderInfo.bytesTotal; //carica il numero di B totali
   ?var loaded : Number = this.stage.loaderInfo.bytesLoaded;//cAarica il numero di B caricati
8. 
   
9. ?bar.scaleX = loaded/total;
   ?showProgr.text = Math.floor((loaded/total)*100).toString() + ''%'';
10. 
    
11. 
    ?if (total == loaded) {
    ?play();
    ?this.removeEventListener(Event.ENTER_FRAME, loading2);
    ?}
12. 
    
13. }
14. 
    
15. this.addEventListener(Event.ENTER_FRAME, loading2);
16. 
    
17. skipIntro.addEventListener(MouseEvent.CLICK, function(){
    ?this.removeEventListener(Event.ENTER_FRAME, loading2);
    ?gotoAndPlay(''1'', ''sito'');
    ?});
18. 
    
19. stop();

It gives me an error 1006 on line17. How is it possible? Why here and not on the 11 too?

Error 1006: removeEventListener in not...

Try not burying the handler function inside the listener...

skipIntro.addEventListener(MouseEvent.CLICK, handleSkip);

function handleSkip(evt:MouseEvent):void {
?this.removeEventListener(Event.ENTER_FRAME, loading2);
?gotoAndPlay(''1'', ''sito'');
}

And that gotoAndPlay(''1'', ''sito''); is questionable in case you have a problem geting to where it's supposed to be going.