Disabling the proxy in /etc/apt/apt.conf.d/01proxy (by commenting it with //) fixes the issue for me; I'm proceeding with the upgrade.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1787622 Title: could not upgrade Kubuntu 16.04.5 LTS to 18.04.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1787622/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
