NullPointerException in Eclipse itself

Question

I started working on a project recently and after I imported it in Eclipse (the usual way, File -> Import -> Existing Projects into Workspace) it started giving me this strange error. The project has a little red icon, like it is not configure properly, that is really bugging me.

The error below happens also when I click on Project Facets. When I try to click OK it alerts me with the usual java-style NullPointerException . Otherwise, the project works just fine. I'm using Eclipse Kepler .

Answer 1

Examine the error log view, select appropriate problem (probably the JPA error message) and open it. See if there is a stack trace present. this may point more directly to the issue at hand. Suggest possibly reporting it to Eclipse foundation at the bugzilla site.

(edit: corrected view name. thanks)