illegal cyclic inheritance

He,

since I have update my Scala Eclipse IDE to http://download.scala-ide.org/releases-29/2.0.0-beta
I continously receive ``illegal cyclic inheritance`` errors. A rebuild
resolves this issue, though. Nevertheless it is annoying to have all
this kind of errors spread over a file although these are none. Is
there a solution/ workaround?

I am using Eclipse SDK, Version: 3.6.2, Build id: M20110210-1200.

Thanks,
/nm