Struts Assistent not working anymore

Hi!

I have a problem. I used Struts Assistents for several weeks, but someday it stopped working. The struts-, tiles- and validatortabs are empty. All my paths in struts-config are marked as error "cannot resolve file", but my applications still works. I tried to reinstall the plugin and the whole idea, but nothing helps.

What can I do? I'm helpless. I'm using Idea 6.0.4 and Struts Assistent 2.0.

Strunker