It is not normal. Original bug-report was written against apport. I started to call xdg-open and gvfs-open directly to analyze the problem.
Apport uses xdg-open (which calls gvfs-open) in /usr/lib/python3/dist-packages/apport/ui.py . So apport uses deprecated mechanism. It is not critical. But in 16.04 LTS I do not have such message. ** Changed in: apport (Ubuntu) Status: Invalid => New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apport in Ubuntu. https://bugs.launchpad.net/bugs/1721948 Title: gvfs-open/xdg-open shows message about 'gio open' which confuses user Status in gvfs: Unknown Status in apport package in Ubuntu: New Status in gvfs package in Ubuntu: Invalid Status in xdg-utils package in Ubuntu: New Bug description: Steps to reproduce: 1. Install Ubuntu 17.10 2. Try to report bug with Apport by terminal command `apport-bug apport` Expected results: apport-bug reports bug silently Actual results: get output in the terminal $ apport-bug apport This tool has been deprecated, use 'gio open' instead. See 'gio help open' for more info. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: apport 2.20.7-0ubuntu2 ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3 Uname: Linux 4.13.0-12-generic i686 ApportVersion: 2.20.7-0ubuntu2 Architecture: i386 CurrentDesktop: MATE Date: Sat Oct 7 13:50:23 2017 InstallationDate: Installed on 2017-08-26 (41 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha i386 (20170826) PackageArchitecture: all SourcePackage: apport UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/gvfs/+bug/1721948/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp