This is normal a transient problem that goes away after a short while. You will have to refresh your software index (or ‘sudo apt-get update’) and try again.
** Changed in: synaptic (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1118677 Title: W: Falha ao obter http://archive.ubuntu.com/ubuntu/pool/main/m/mono /libmono-posix2.0-cil_2.6.7-3ubuntu1_all.deb 404 Not Found [IP: 91.189.92.201 80] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/synaptic/+bug/1118677/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs