Gnome Multi monitors extension installed from apt is not loading

[Rael Gugelmin Cunha]

In a fresh install of disco release, if I install multi-monitors addon from apt (sudo apt install gnome-shell-extension-multi-monitors) and reload Gnome, the extension will not load (Gnome Tweak will display the error message "error loading extension").

In the other side, if I click in the error message from Gnome Tweak, then Ubuntu Software is loaded, which will say that the extension is not installed (wondering if it's because it uses extensions.gnome.org as source).

Then if I install from Ubuntu Software (which I think uses extensions.gnome.org) and reload, it'll work.

Probably the packaged version is not updated? (Packaged version is 16, extensions.gnome.org version is 18).

Package version:

dpkg -s gnome-shell-extension-multi-monitors
Package: gnome-shell-extension-multi-monitors
Status: install ok installed
Priority: optional
Section: gnome
Installed-Size: 194
Maintainer: Ubuntu Developers <email address hidden>
Architecture: all
Version: 16-1

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: gnome-shell-extension-multi-monitors 16-1
ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
Uname: Linux 5.0.0-13-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue May 7 08:05:44 2019
InstallationDate: Installed on 2019-05-03 (3 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
PackageArchitecture: all
SourcePackage: gnome-shell-extension-multi-monitors
UpgradeStatus: No upgrade log present (probably fresh install)

[Rael Gugelmin Cunha (rael-gc)]

Inspecting the related Debian package, only in experimental the extension is updated to version 18 (which works on Gnome 3.32): https://packages.debian.org/experimental/gnome-shell-extension-multi-monitors