import fl.data.DataProvider; is not working in Adobe CS4

How ca开发者_开发百科n I use import fl.data.DataProvider; in Adobe CS4. When I try to import it showing

1172: Definition fl.controls could not be found.

the fl library will not show up in your IDE until you drag a component that actually uses it (in this case, a component that uses a data provider) into your library.

you can manually add fl to your class path if you want so that it's always there, but it's not more useful since you'll need the target component in your library during compile time anyway. it's by design. components have a built-in "Component Shim" that exposes its code package to your IDE.