Dbus error message when gnome-software runs under unity7

[Jean-Baptiste Lallement]

When gnome-software runs under unity7 the following error message is displayed

GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: Interface "org.gnome.Shell.Extensions" doesn't exist for object /org/gnome/Shell

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-software 3.25.91-1ubuntu5
ProcVersionSignature: Ubuntu 4.12.0-13.14-generic 4.12.10
Uname: Linux 4.12.0-13-generic x86_64
ApportVersion: 2.20.7-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity:Unity7:ubuntu
Date: Thu Sep 14 12:10:03 2017
InstallationDate: Installed on 2017-08-24 (21 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
InstalledPlugins:
 gnome-software-plugin-flatpak N/A
 gnome-software-plugin-limba N/A
 gnome-software-plugin-snap 3.25.91-1ubuntu5
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-software
UpgradeStatus: Upgraded to artful on 2017-09-14 (0 days ago)

[Robert Ancell (robert-ancell)]

This is shell extensions plugin. It's supposed to handle not running under GNOME Shell but it looks like a recent change to show the errors in toasts is exposing this when it should be ignored.

[Sebastien Bacher (seb128)]

the issue has been fixed in 3.26