Source lookup

[smagfx2]

I want to step through some functions in UIComponent but in the debugger it just says 'mx.core::UIComponent/addChild [no source]'.

If I am just in the editor, I can control click on a UIComponent method and go directly to the method and everything.

What do I have to do in flash builder to attach the source for UIComponent in the debugger?

[Anirudh Sasikumar]

Debugger should be able to figure out source for UIComponent.

Are you using RSLs? If so, is "use debug RSLS" checked in Project properties -> Build path?