Error #1010

1

Hi.
I am making a random Number generator and it is saying I have this error:
TypeError: Error #1010: A term is undefined and has no properties.
at Randomnumbergenerator_fla::MainTimeline/frame1()

Here is my script:


/*add code to make the random number holder stop on its empty frame
In AS3 this must be done on the main timeline
Use the crosshairs (insert a target path) to help do this
*/ 
this.numberHolder_mc.gotoAndStop(11); 


var randomNumber:Number = Math.floor(Math.random()*10)+ 1;
    //return randomNumber;
	trace (randomNumber);
	//make the movie clip go to the frame that matches the number
	this.numberHolder_mc.gotoAndStop(randomNumber);
	// add an if statement to trace whether number is odd.
if ((randomNumber==2) || (randomNumber==4) || (randomNumber==6)|| (randomNumber==8) || (randomNumber==10))
    {trace("This number is even"); 
    this.message1.text="This number is even";
    }
    else 
    {trace ("This number is odd" )
    this.message1.text="This number is odd"
    }

Help please!:chinaman: