将Flex 3迁移到Flex 4时出错 [英] Error migrating Flex 3 to Flex 4

问题描述

我将Flex 3项目导入到Flex 4中，并删除了Flex 4问题窗口中列出的所有错误和警告。

我在Flex 4中出现以下错误当启动我的应用程序。

这可能是什么原因？

 错误：兼容性版本已被读取。 
在mx.core :: FlexVersion $ / set compatibilityVersion（）[E：\dev\4.x\frameworks\projects\framework\src\mx\core\FlexVersion。 as：254] 
 at mx.core :: FlexVersion $ / set compatibilityVersionString（）[E：\dev\\4.x\frameworks\projects\framework\src\mx\core \FlexVersion.as：301] 
 at _Screen1Module_mx_core_FlexModuleFactory（）
  

请高手帮忙在这一个。

非常感谢

解决方案

。

当试图在flex中加载模块时，问题实际上发生了。所以基本上我包含了命名空间

  xmlns：fx =http://ns.adobe.com/mxml/2009
 xmlns：s =library：//ns.adobe.com/flex/spark
 xmlns：mx =library：//ns.adobe.com/flex/mx
  

也替换为< mx：Component> ，< mx：Style> 通过相应的< fx：....>

这解决了这个问题。

I imported my Flex 3 project to Flex 4 and removed all the errors and warnings listed in Flex 4 problem windows.

I am having the following error in Flex 4 when launching my application.

What could be the cause of this?

Error: Compatibility version has already been read.
    at mx.core::FlexVersion$/set compatibilityVersion()[E:\dev\4.x\frameworks\projects\framework\src\mx\core\FlexVersion.as:254]
    at mx.core::FlexVersion$/set compatibilityVersionString()[E:\dev\4.x\frameworks\projects\framework\src\mx\core\FlexVersion.as:301]
    at _Screen1Module_mx_core_FlexModuleFactory()

Experts, please help me on this one.

Many thanks

解决方案

Here is the answer.

The problem was actually occuring when trying to load modules in flex. So basically I included the namespaces

xmlns:fx="http://ns.adobe.com/mxml/2009" 
xmlns:s="library://ns.adobe.com/flex/spark" 
xmlns:mx="library://ns.adobe.com/flex/mx"

and also replaced <mx:Component>, <mx:Style> by their corresponding <fx:....>

And this solved the issue.

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