These are the entries in sources.list file.I replaced Xenial with bionic and tried again.
(base) vatsal@vatsal-XPS-15-9570:~$ cat /etc/apt/sources.list # deb http://archive.ubuntu.com/ubuntu bionic main restricted universe multiverse # deb-src http://archive.ubuntu.com/ubuntu bionic main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu bionic-updates main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu bionic-security main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu bionic-security main restricted universe multiverse # deb http://archive.ubuntu.com/ubuntu bionic-proposed restricted main universe multiverse # deb-src http://archive.ubuntu.com/ubuntu bionic-proposed restricted main universe multiverse deb http://archive.canonical.com/ubuntu bionic partner deb-src http://archive.canonical.com/ubuntu bionic partner ** Attachment added: "Selection_256.png" https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1898009/+attachment/5418190/+files/Selection_256.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1898009 Title: upgrader failes -Could not calculate the upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1898009/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
