Thanks for reporting. I don't know the details around these packages, but looks like both packages were removed in (or after) Ubuntu 17.04.
For details, see https://launchpad.net/ubuntu/+source/wine-mono0.0.8/+publishinghistory and bug 1628116 for wine-mono https://launchpad.net/ubuntu/+source/wine-gecko2.21/+publishinghistory and bug 1628115 for wine-gecko. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1724087 Title: Ubuntu 17.10 repository does not have gecko package and wine-mono package To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/wine/+bug/1724087/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs