problem with Resin For Eclipse plugin

I wanted to find out if anyone else has encountered this problem with using the feature to create a web project.
I don't have a problem creating the project or building it until after I close Eclipse. When I reopen Eclipse and attempt to use any of the Resin for Eclipse features(accessing the view, accessing the preferences, etc) I get the following error:

If I delete the project and restart Eclipse the problem goes away. Has anyone seen this problem before?

I didn't find a fix for the problem I was having, but the WebApp plugin seems to have all of the functionality I need. So far it actually works too.