我们计划将我们的项目flex sdk 3.0迁移到sdk 4.0。超过5年我们使用sdk 3.0。项目构建成功但在运行应用程序时我们得到以下错误：
TypeError: Error #1006: getResourceBundle is not a function.
at mx.data.utils::ResourceTranslator$cinit()
at global$init()[C:\depot\flex\branches\enterprise_bridgeman\frameworks\mx\data\utils\ResourceTranslator.as:30]
at mx.data.utils::SerializationProxy$cinit()
at global$init()[C:\depot\flex\branches\enterprise_bridgeman\frameworks\mx\data\utils\SerializationProxy.as:51]
at _ClientRefWeb_FlexInit$/init()
at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::kickOff()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2815]
at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::preloader_completeHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2723]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.preloaders::Preloader/timerHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\preloaders\Preloader.as:542]
at flash.utils::Timer/_timerDispatch()
at flash.utils::Timer/tick()
这是否有任何版本问题？请给出任何解决方案。