"gio monitor" does not work

[Michael Albinus]

# ls -l /etc/adduser.conf
-rw-r--r-- 1 root root 2981 Mar 11 2012 /etc/adduser.conf
# gio monitor file:///etc/adduser.conf
gio: No locations given

Usage:
  gio monitor [OPTION…] [LOCATION...]

Monitor files or directories for changes.

Options:
  -d, --dir=LOCATION Monitor a directory (default: depends on type)
  -f, --file=LOCATION Monitor a file (default: depends on type)
  -D, --direct=LOCATION Monitor a file directly (notices changes made via hardlinks)
  -s, --silent=LOCATION Monitors a file directly, but doesn’t report changes
  -n, --no-moves Report moves and renames as simple deleted/created events
  -m, --mounts Watch for mount events

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: libglib2.0-bin 2.54.1-1ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-21.24-generic 4.13.13
Uname: Linux 4.13.0-21-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
Date: Fri Jan 12 14:29:42 2018
InstallationDate: Installed on 2012-03-12 (2131 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120311)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/usr/bin/tcsh
SourcePackage: glib2.0
UpgradeStatus: No upgrade log present (probably fresh install)

[sam tygier (samtygier)]

I can confirm that it does not work in ubuntu 17.10, but does work in Fedora 27 (which has glib 2.54.3 http://ftp.gnome.org/pub/gnome/sources/glib/2.54/glib-2.54.3.news)

[Sebastien Bacher (seb128)]

Thank you for your bug report, indeed that's an upstream bug which was fixed after .1 but before .3. The fix is in the current bionic version
The corresponding upstream bug is https://bugzilla.gnome.org/show_bug.cgi?id=790093