when debugging main.xml the Application object is not understood by the debugger. to duplicate, call init, and in the init method have a reference to the Application object, something like below <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns="*" pageTitle="EBT Retailer" backgroundColor="#FFFFFF" initialize="init();"> private function init():void { Application.application.user.isGuest = "Y"; Application.application.user.isLogonStateUserId = "Y"; }