apache-flex - 从Flex 3迁移到Flex 4错误

Question

您好，我将我的Flex 3项目迁移到FLex 4:我遇到以下错误:

任何人都有在Flex 4中修复此问题的想法。

1061: Call to a possibly undefined method activate through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method activate through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method activate through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method activate through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method addFocusManager through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method addFocusManager through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method addFocusManager through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method addFocusManager through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method removeFocusManager through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method removeFocusManager through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method removeFocusManager through a reference with static type mx.managers:ISystemManager.
1061: Call to a possibly undefined method removeFocusManager through a reference with static type mx.managers:ISystemManager.
1144: Interface method addPopUp in namespace mx.managers:IPopUpManager is implemented with an incompatible signature in class mx.managers:PopUpManagerImpl. 
1144: Interface method addPopUp in namespace mx.managers:IPopUpManager is implemented with an incompatible signature in class mx.managers:PopUpManagerImpl. 
1144: Interface method addPopUp in namespace mx.managers:IPopUpManager is implemented with an incompatible signature in class mx.managers:PopUpManagerImpl. 
1144: Interface method addPopUp in namespace mx.managers:IPopUpManager is implemented with an incompatible signature in class mx.managers:PopUpManagerImpl. 
1144: Interface method createPopUp in namespace mx.managers:IPopUpManager is implemented with an incompatible signature in class mx.managers:PopUpManagerImpl.  
1144: Interface method createPopUp in namespace mx.managers:IPopUpManager is implemented with an incompatible signature in class mx.managers:PopUpManagerImpl.  
1144: Interface method createPopUp in namespace mx.managers:IPopUpManager is implemented with an incompatible signature in class mx.managers:PopUpManagerImpl.  
1144: Interface method createPopUp in namespace mx.managers:IPopUpManager is implemented with an incompatible signature in class mx.managers:PopUpManagerImpl.  

谢谢你的帮助。

Answer 1

此类错误通常是由于版本不匹配问题引起的。因此，请确保所有外部库都使用与主项目相同的Flex SDK版本进行编译。

如果您使用的是框架或在Web上找到的其他库，则您可以在源代码可用的情况下自行重新编译它们。