[news.eclipse.tools.cdt] How to delete invalid paths?

[Edzard Egberts <ed_09@xxxxxxxxx>]

Hello,

after waiting a year for the new eclipse I just tried again to get rid 
of the warnings "Invalid project path". These paths are shown by using 
"Properties -> C/C++ General -> Paths and Symbols" and inside the tab 
"Includes -> GNU C++". There is a button "Delete", but it doesn't allow 
to delete the wrong paths (i.e. "/usr/include" which is really nonsense 
on my windows system), because of beeing deactivated (it is only 
possible to delete paths, that I need). I minded it to be a bug that 
will be fixed within a year, but there is no change.

Is this really a bug, or is there another way to get rid of these 
warnings (they are a lot)?

Best regards,

Ed