am getting error, when i click input text field then only it goes to next scene, i want to use it without click input text... and also getting this error?

error i.e.
TypeError: Error #2007: Parameter child must be non-null.
at flash.display:isplayObjectContainer/addChild()


myFormat.font = myFont.fontName;

//myFormat.align = TextFormatAlign.CENTER;

//creating text filed
theTextField= new TextField();
//theTextField.text= "";
theTextField.defaultTextFormat = myFormat;
theTextField.type = TextFieldType.INPUT;
theTextField.border = true;
theTextField.width = 270;
theTextField.height = 80;
theTextField.x = 620;
theTextField.y = 310;
theTextField.multiline = true;
//theTextField.wordWrap = true;
theTextField.background = true;


addChild(theTextField);
theTextField.addEventListener(TextEvent.TEXT_INPUT , inputEventCapture);


public function createOutputBox(str:String):void {

var myFont = new cfont();
var myFormat2:TextFormat = new TextFormat();



}