You seem to have kubuntu-desktop installed, but the resolving of the new dependencies seems to fail. Do you have a file /etc/apt/preferences where you've apt-pinned packages?
** Summary changed: - Kubuntu upgrade [feisty->gutsy] missing "kde-desktop" + Kubuntu upgrade [feisty->gutsy]: "failed to mark 'kubuntu-desktop' for install" ** Changed in: update-manager (Ubuntu) Status: New => Incomplete -- Kubuntu upgrade [feisty->gutsy]: "failed to mark 'kubuntu-desktop' for install" https://bugs.launchpad.net/bugs/154010 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs