Your /etc/apt/sources.list file is full of invalid entries. 4 # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to 5 # newer versions of the distribution. 6 deb mirror://mirrors.ubuntu.com/mirrors.txt bionic main restricted 7 deb-src mirror://mirrors.ubuntu.com/mirrors.txt bionic universe main restricted multiverse #Added by software-properties 8 # deb-src http://tr.archive.ubuntu.com/ubuntu/ bionic main restricted
The following wiki page has examples for proper sources.list entries. https://help.ubuntu.com/community/Repositories/CommandLine ** Changed in: ubuntu-release-upgrader (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/1813150 Title: 18.10 update bug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1813150/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
