stop sound

[nouff28172440]

hi . i make function (poooos) to stop the  sound but it did not work why? can u help plz!

import flash.media.Sound;

import flash.media.SoundChannel;

import flash.media.SoundTransform;

import flash.net.URLRequest;

myppbtn.buttonMode = true;

var s:Sound = new Sound();

var sc:SoundChannel ;

var trans:SoundTransform = new SoundTransform (.5);

s.addEventListener(Event.COMPLETE,sloaded);

s.load(new URLRequest("jo.mp3"));

function sloaded(e:Event):void {

  sc = s.play(0,1,trans);

  }

myppbtn.addEventListener(MouseEvent.CLICK, poooos);

function poooos (e:MouseEvent):void{

  sc.stop();

  }

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the output write for me this massage but i don't understand

TypeError: Error #1009: Cannot access a property or method of a null object reference.

  at RECOVER_RECOVER_Untitled_1_fla::MainTimeline/poooos(

[kglad · Accepted solution]

disable smart layers (modify>document>disable smart layers)