Error with hitTestObject. Confused.

Question

Hello, this is a game i'm doing for school. For some reason i'm getting the error 1010. A term is undefined. at line 78. This is weird because the two objects colliding does exist. Can someone here quick scan my code and see what the error is?
the error is at line 78.
package
    import flash.display.MovieClip;
    import flash.events.*;
    import flash.ui.*;
    public class SpelMain extends MovieClip
        var gubbe = new Gubbe;
        var fiende:Array = new Array;
        var i:int = 0;
        var number:int = 1;
        var xSpeed:int = 0;
        var mDown:Boolean= false;
        var ySpeed:Number = 1;
        var mdisable:Boolean=false
        public function SpelMain()
            addChild(gubbe);
            gubbe.x = mouseX
            //gubbe.y = 380;
            addFiende()
            Mouse.hide();
            stage.addEventListener(Event.ENTER_FRAME, loop);
            stage.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler);
            stage.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler);
        public function addFiende()
            for(i=0;i<number;i++)
                fiende[i]=new Fiende;
                addChild(fiende[i]);
                fiende[i].y = 390;
                fiende[i].x = 200;
                xSpeed = 5;
        public function loop(e:Event):void
            gubbe.x = mouseX;
            for(i=0;i<number;i++)
                fiende[i].x -= xSpeed;
                if(fiende[i].x<0) {fiende[i].x=stage.stageWidth}
            gubbe.y+= ySpeed
            if(mDown == true &&mdisable==false)
                ySpeed=-20
                mDown=false
                mdisable=true
            else
            {mdisable=false}
            if(mDown == false)
                ySpeed+=1
            if(gubbe.y>stage.stageHeight)
                ySpeed=0
                gubbe.y= stage.stageHeight
            if(fiende[i].hitTestObject(gubbe))
                gubbe.hide();
        public function mouseDownHandler(e:MouseEvent):void
            mDown = true;
        public function mouseUpHandler(e:MouseEvent):void
            mDown = false;
Thanks in advance.

Answer 1

i is only in your loops defined and line 78 is not in the loop.