Thank you for the follow-up comments. I am closing this as NOTABUG, then, but I am looking at a possible change in the message.
** Changed in: synaptic (Ubuntu) Status: Incomplete => Invalid -- E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem. E: _cache->open() failed, please report. https://bugs.launchpad.net/bugs/288997 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs