It would appear the issue is that a gdebi instance opened from the context menu on a desktop item is unable to do any action on any .deb file located anywhere. In other words it's doomed to fail upon simply opening.
Can be easily seen by opening gdebi-gtk as described but then switching to another .deb somewhere else from gdebi's open menu item. This will also fail. gdebi-gtk opened from app menu has no issues acting on a .deb from anywhere inc. the desktop -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1807761 Title: Unable to install deb-file stored on Desktop (which is controlled by nautilus-desktop) with GDebi To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdebi/+bug/1807761/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs