unable to remove movieclip itself from stage as3

programming flash
1

I had a button, with that button a movieclip is called on the stage and it is working fine with the below script

var mc:mc_lemon
var btn: btn_Lemon

mc=new mc_lemon();
btn = new btn_Lemon();

addChild(btn);

btn.x = 304.45;
btn.y = 209.8;
mc.x=304.45;
mc.y=209.8;

btn.addEventListener(MouseEvent.CLICK, addF);

function addF(e:MouseEvent):void{
    addChild(mc);
}

Now I am trying to remove the movieclip itself from the stage after reaching its last frame, but failed.

I was trying to remove it by placing this script at its last frame this.parent.removeChild(this); but failed

2

What about it is failing? Are you seeing an error message?