It sounds like you didn't recompile your 2.x modules in 3.0
________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of boy_trike Sent: Tuesday, April 01, 2008 10:20 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Modules dont work when converting from Flex 2 to Flex 3 Took my app, imported it and recompiled it in Flex 3. When I deploy it and run it and attempt to load a module, I get the following error: ArgumentError: Error #1063: Argument count mismatch on mx.binding::PropertyWatcher(). Expected 3, got 2. at _POWatcherSetupUtil/setup() at PO/initialize() at mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::childAd ded <http://www.adobe.com/2006/flex/mx/internal::childAdded> ()[E:\d ev\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as:5159] at mx.core::Container/http://www.adobe.com/2006/flex/mx/internal::childAdde d <http://www.adobe.com/2006/flex/mx/internal::childAdded> ()[E:\dev\3 .0.x\frameworks\projects\framework\src\mx\core\Container.as:3297] at mx.core::Container/addChildAt()[E:\dev\3.0.x\frameworks\projects\framewo rk\src\mx\c ore\Container.as:2210] at mx.core::Container/addChild()[E:\dev\3.0.x\frameworks\projects\framework \src\mx\cor e\Container.as:2140] at mx.modules::ModuleLoader/moduleReadyHandler()[E:\dev\3.0.x\frameworks\pr ojects\fra mework\src\mx\modules\ModuleLoader.as:341] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at ModuleInfoProxy/moduleEventHandler()[E:\dev\3.0.x\frameworks\projects\fr amework\src \mx\modules\ModuleManager.as:1027] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at ModuleInfo/readyHandler()[E:\dev\3.0.x\frameworks\projects\framework\src \mx\module s\ModuleManager.as:706] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.core::FlexModuleFactory/update() at mx.core::FlexModuleFactory/docFrameHandler() Thanks Bruce