Maybe your sources.list is broken. Please attach your /etc/apt/sources.list to this bug.
Can you install software by using apt-get directly? (That is, from a root prompt or via sudo, "apt-get install packagename"?) -- Cannot open Repositories panel in Synaptic Package Manager https://launchpad.net/bugs/50441 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
