Actionscript 3.0 :: Button Not Working - Errors: 1119: Access Of Possibly Undefined Property Enabled Through A Reference With Static Type Class

I'm trying to make a flash animation but I'm getting these two errors: 1119: Access of possibly undefined property enabled through a reference with static type Class. (line 4) 1061: Call to a possibly undefined method addEventListener through a reference with static type Class. (line 5) This is the code I'm using:
Code: Select allimport flash.display.*;

import flash.events.*;
stop();
buti.enabled;
buti.addEventListener(MouseEvent.CLICK,pla);
function pla(e:MouseEvent):void {
gotoAndPlay(2);
}

My animation is a initial photo that turns around and becomes a black backgroud (were I'll add some text), now what I want is that the photo won't animate until I do a click in it. I used a Layer with a transparent image and converted it to a button and the export name is buti. The other to layers were converted to movie clips named preto and foto.