Mr. Murray, Without having yet added "universe-updates" (or anything else) to my /etc/apt/sources.list file, I went ahead and ran `apt-get update` and `apt-cache policy vim-gtk3` again, now it looks like things have been fixed (enough) for me to move forward as-is.
AND IT WORKS! Unfortunately, it only works because of the passage of time (and things being fixed upstream, presumably); it WAS a problem when I originally created this ticket, and specifically that problem is that the default sources.list fails to include the proper "xenial-updates" lines. There are 2 files which may be significant, "sources.list" and the older "sources.list.save" files. I will attach "sources.list", and their diff is below. Perhaps this bug report should be re-filed with the people who are in charge of the default "/etc/apt/sources.list" files??? Thanks, ~ Will $ ls -l /etc/apt/sources.list* -rw-rw-r-- 1 root root 2727 Nov 24 09:23 /etc/apt/sources.list -rw-rw-r-- 1 root root 2827 Aug 16 12:12 /etc/apt/sources.list.save # diff sources.list.save sources.list 6c6 < # deb-src http://us.archive.ubuntu.com/ubuntu/ xenial main restricted --- > deb-src http://us.archive.ubuntu.com/ubuntu/ xenial main restricted 27c27 < # deb-src http://us.archive.ubuntu.com/ubuntu/ xenial multiverse --- > deb-src http://us.archive.ubuntu.com/ubuntu/ xenial multiverse 35d34 < deb http://us.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse 42c41 < # deb http://archive.canonical.com/ubuntu xenial partner --- > deb http://archive.canonical.com/ubuntu xenial partner $ apt-cache policy vim-gtk3 vim-gtk3: Installed: (none) Candidate: 2:7.4.1689-3ubuntu1.2 Version table: 2:7.4.1689-3ubuntu1.2 500 500 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 Packages 2:7.4.1689-3ubuntu1 500 500 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages # apt-get update ... # apt-get install vim-gtk3 Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: vim-gui-common Suggested packages: cscope vim-doc vim-gnome-py2 | vim-gtk-py2 | vim-gtk3-py2 | vim-athena-py2 The following NEW packages will be installed: vim-gtk3 vim-gui-common 0 upgraded, 2 newly installed, 0 to remove and 4 not upgraded. Need to get 1,290 kB of archives. After this operation, 3,223 kB of additional disk space will be used. Do you want to continue? [Y/n] Get:1 http://security.ubuntu.com/ubuntu xenial-security/main amd64 vim-gui-common all 2:7.4.1689-3ubuntu1.2 [67.6 kB] Get:2 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 vim-gtk3 amd64 2:7.4.1689-3ubuntu1.2 [1,223 kB] Fetched 1,290 kB in 2s (606 kB/s) Selecting previously unselected package vim-gui-common. (Reading database ... 333767 files and directories currently installed.) Preparing to unpack .../vim-gui-common_2%3a7.4.1689-3ubuntu1.2_all.deb ... Unpacking vim-gui-common (2:7.4.1689-3ubuntu1.2) ... Selecting previously unselected package vim-gtk3. Preparing to unpack .../vim-gtk3_2%3a7.4.1689-3ubuntu1.2_amd64.deb ... Unpacking vim-gtk3 (2:7.4.1689-3ubuntu1.2) ... Processing triggers for man-db (2.7.5-1) ... Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20160701-0ubuntu1) ... Rebuilding /usr/share/applications/bamf-2.index... Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ... Processing triggers for desktop-file-utils (0.22-1ubuntu5) ... Processing triggers for mime-support (3.59ubuntu1) ... Setting up vim-gui-common (2:7.4.1689-3ubuntu1.2) ... Setting up vim-gtk3 (2:7.4.1689-3ubuntu1.2) ... update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/vim (vim) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/vimdiff (vimdiff) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/rvim (rvim) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/rview (rview) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/vi (vi) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/view (view) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/ex (ex) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/editor (editor) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/gvim (gvim) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/gview (gview) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/rgview (rgview) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/rgvim (rgvim) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/evim (evim) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/eview (eview) in auto mode update-alternatives: using /usr/bin/vim.gtk3 to provide /usr/bin/gvimdiff (gvimdiff) in auto mode ** Attachment added: "sources.list" https://bugs.launchpad.net/ubuntu/+source/vim/+bug/1613949/+attachment/4797268/+files/sources.list -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1613949 Title: vim-gtk3 Has Unmet Dependencies After `apt-get upgrade` In Ubuntu 16.04.1 Xenial To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/vim/+bug/1613949/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs