flex ArgumentError: Error #1063: Argument count mismatch on views::......

private function showImages(img:ArrayList):void{
                
                for(var i:Number=0;i<img.length;i++){
                    var imgModle:ImageModle = new ImageModle();
                    imgModle = img.getItemAt(i) as ImageModle;
                    var image:Image = new Image();
                    var desc:Label = new Label();
                    desc.text = imgModle.imgDesc;
                    image.source = imgModle.imgSrc;
                    imgGroup.addElement(image);
                    imgGroup.addElement(desc);
                    image.buttonMode = true;
                    image.addEventListener(MouseEvent.CLICK,showMoreImages);

                }
                
            }
            private function showMoreImages(event:MouseEvent):void{
                //arguments; 如果方法没有参数，则必须在方法中添加这个声明
                navigator.pushView(views.ImagesView);
            }