package to import for mx:XML

I am creating an app with Flex 4 using 开发者_运维百科Flash Builder. When I try to use mx:XML component, I get the error Could not resolve <mx:XML> to a component implementation. Can any one tell me which package to import to resolve this error.

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Try with <fx:XML (assuming that you are using the default namespaces generated by FB). Also it should stay in <fx:Declarations> area.

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the XML class is in the top level package, so it should be included in your project by default.

The problem is probably to do with the namespace/s that are in use (i.e. the xmlns attributes of your root MXML element)

Some information and possible solutions here and here