Error 1013 private function, Help!?

Question

Hey i'm new to this but i've been stuck on this problem for a couple of hours now.. If anybody can see what the problem is that would be great! I've highlighted the line on which the error occurs (line 68) I have my braces correct i believe so i can not see what the problem is. Thanks.
package  {
                    import flash.display.Sprite;
                    import flash.text.TextField;
                    import Classes.P_Circle;
                    import flash.events.MouseEvent;
          public class Main extends Sprite {
                    //private properties
                    private var container:Sprite = new Sprite ();
                    private var textBox:TextField = new TextField ();
                    private var padding:uint = 10;
                    //initialization
                    public function Main() {
                              //adds a random number of images to the contatiner
                              this.makeImages(getRandomNumber(10,5) );
                              //add a mouse listener to container
                              this.container.addEventListener(MouseEvent.CLICK, hitObject);
                              //add the container to the stage
                              stage.addChild(this.container);
                              //function to draw UI and config
                              this.ConfigUI();
                     private function ConfigUI():void {
                              this.textBox.x = 5;
                              this.textBox.y = -10;
                              stage.addChild(textBox);
                    //private methods, calculator
                     private function hitObject(e:MouseEvent):void {
                              //change transparancy of circle
                              e.target.alpha = 0.3;
                              //calculates new x and y for shapes
                              textBox.text = 'x ' + e.target.x + '. y:' + e.target.y;
                    private function makeImages(nImagesToCreate:uint):void {
                                        var obj:P_Circle = new P_Circle(1,1);
                                        // this is to keep the circles from colliding when randomly placed
                                        var maxCols:Number = Math.floor(stage.stageWidth - obj.width - this.padding);
                                        var maxRows:Number = Math.floor(stage.stageHeight - obj.height - 50);
                                        obj = null;
                                        //loop to create as many circles as asked
                                        for (var j:uint = 0; j < nImagesToCreate; j++) {
                                                  //place circle in random posistions
                                                  obj = new P_Circle( getRandomNumber(maxCols, this.padding), getRandomNumber )
                                                  //give it a name
                                                  obj.name = 'circle_'+j;
                                                  //add it to container for display
                                                  this.container.addChild(obj);
                              obj = null;
                              // the sprite contaienr changes its size depending on objects which are on stage
                              trace ('container width: ', container.width);
                              trace ('container height: ', container.height);
        private function getRandomNumber(upperLimit:uint, lowerLimit:uint):uint {
                                  //get random number of circles
                                  var randomNum:Number = Math.floor(Math.random() * (1 + 10 - 5) + 5);
                                        return randomNum;

Answer 1

Arent i telling it to just use randomnumber values within these parameters?
private function makeImages(nImagesToCreate:uint):void {
                                        var obj:P_Circle1 = new P_Circle1(1,1);
                                        // this is figures out where circles are placed, keeps them on screen
                                        var maxCols:Number = Math.floor(stage.stageWidth - obj.width - this.padding);
                                        var maxRows:Number = Math.floor(stage.stageHeight - obj.height - 50);
                                        obj = null;