flash builder 4.7 swc tlftextfield error

Hi All,

I have just changed to FB4.7 and now my application is throwing an error saying

Type Coercion failed: cannot convert flash.display::MovieClip@4f22d31 to fl.text.TLFTextField.

I have swc's in my library folder, which i'm trying to access.

In FB4.6 it works ok, so I hope anyone can tell me how to fix this, otherwise it's back to 4.6!

I have tried to include the textLayout.swc already, but no luck...

Thanks!