[news.eclipse.tools] strange error on project dependencies

["Michael Moser" <mmo@xxxxxxxxxxxxxx>]

I have a problem in that two projects that depend on a third one both
tell me, they can't be rebuilt until that third one is rebuilt. But
even after rebuilding that third one a couple of times now, they
refuse to rebuild.

Maybe more clearly: I have three projects:

A
B - depends on A
C - depends on A and B

Project A HAS been rebuilt, there is no error flagged, it compiles
just fine. But, both, B and C display a red X and show an error
message "The project cannot be built until A is rebuilt. Rebuilding
all projects is recommended".

Needless to say, I have refreshed, rebuilt ALL as well as A, B, C
individually in misc. orders and combinations and all of that several
times by now, but the result remains always the same: B and C refuse
to build! I even closed and restarted eclipse a few times but all to
no avail.

Is there some log or other possibility to debug such a case and find
out what's wrong and why this does not rebuild??? FWIW: neither B nor
C show any error, either, but only this single red X.

Michael