halo 和 mx 命名空间之间的区别
据我所知，对library://ns.adobe.com/flex/halo命名空间的支持已被删除，现在我们必须使用library://ns.adobe .com/flex/mx（参考） 。有人可以提供这两个名称空间之间是否有任何区别吗？
我刚刚开始学习 Flex，这个变化让我很困惑。例如，如果我的 mxml 文档中有一个
更新： 顺便说一句，我在Windows中使用Flex SDK命令行编译器。
mxmlc --version
Version 4.0.0 build 10485
As far as I know, the support for library://ns.adobe.com/flex/halo namespace has been dropped, and now we have to use library://ns.adobe.com/flex/mx instead (reference). Can someone provide if there's any difference between the two namespaces?
I am just starting to learn Flex and this change make me confused. For example, if I have an <mx:Tree> tag in my mxml document, the compiler complains that <mx:Tree> could not be resolved to a component implementation. But if I change my mx namespace to use the old one instead (halo), it successfully compiled without error.
Updated:
By the way, I use Flex SDK command line compiler in Windows.
mxmlc --version
Version 4.0.0 build 10485
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Adobe 更改了“halo”命名空间，以便更清楚地将其与 Spark 命名空间区分开来。您所需要做的就是查找/用新的 URI 替换旧的 URI。现有的 halo 组件将继续像新命名空间一样工作。
Adobe changed the "halo" namespace in order to more clearly differentiate it from the spark namespace. All you need to do is find/replace the old URI with the new one. The existing halo components will continue to work as is just with a new namespace.