Looks like a bug in aptdaemon to me. It removed the the required ffmpeg packages in the step before.
** Package changed: vlc (Ubuntu) => aptdaemon (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1558488 Title: package vlc-nox 2.2.1-3 failed to install/upgrade: dependency problems - leaving triggers unprocessed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/aptdaemon/+bug/1558488/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
