+++ This bug was initially created as a clone of Bug #2761 +++ /usr/share/applications/claws-mail.desktop: hint: value "Network;Office;Email;" for key "Categories" in group "Desktop Entry" contains more than one main category; application might appear more than once in the application menu Happy now, Ricardo?
Sure Christian, appreciated you care. Anyway, at the risk of repeating myself, this is still a hint, so the bug title is wrong, there's no warning here. And as a hint it is, I think can be safely ignored, specially when this is caused by current specification, which requires you to unconditionally add two categories (Office;Network) when Email category is present, otherwise an error is shown by
the desktop-file-validate tool. See http://standards.freedesktop.org/menu-spec/menu-spec-1.0.html#category-registry
Additionally, it doesn't reproduce on my system: mones@busgosu:~$ desktop-file-validate /usr/share/applications/claws-mail.desktop mones@busgosu:~$
*** Bug 2818 has been marked as a duplicate of this bug. ***