Apache flex 从Flex 3到Flex 4的迁移错误

您好，我已将我的Flex 3项目迁移到Flex 4：我收到以下错误：

任何人都可以在Flex4中解决这个问题

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.  

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谢谢您的帮助。

像这样的错误通常是由于版本不匹配问题造成的。因此，请确保所有外部库都使用与主项目相同的FlexSDK版本进行编译

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如果您使用的是框架或在web上找到的其他库，如果源代码可用，您可能需要自己重新编译它们

您最好列出突出显示有编译器错误的行。@Constantiner通常这样的错误没有行号，并且与库和主项目之间的版本不匹配有关。（见我的答案）。如果您因缺少细节而否决了b/c，我建议您取消否决票，因为我相信原始海报没有更多细节可提供。@www.Flextras.com no，我没有投反对票，我认为这些错误并没有什么特别之处，但我认为如果话题发起者指出这一事实会更好：）@Constantiner我讨厌人们投反对票而不说为什么您好，事实上在Flex3项目中有一个名为PopUpManagerImpl.as的类。正是从这个文件中我得到了所有这些错误。如果可能的话，我想解释一下。Thanks@FlexyBoz除了我已经说过的话，我不知道还能告诉你什么。这个问题通常与特定的类抛出错误无关；它通常涉及在不同于主项目的FlexSDK版本中编译的库。据我所知，没有任何代码可以更改以消除这种情况。您需要重新编译库以使用相同版本的FlexSDK。