The following packages seem to be leftover from an old release of Ubuntu which you were running. Could you try using 'sudo apt autoremove' to see if they are removed automatically or try removing them manually and then upgrading? Thanks in advance.
>From VarLogDistUpgradeMain.log: emacs24-common emacs24-common-non-dfsg emacs24-lucid ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1798729 Title: release upgrade from 18.04 to 18.10 cannot calculate upgrade, no reason given To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1798729/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs