"unable to load VPN connection editor" when adding VPN connection

[Eduard Kachur]

1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu
Description: Ubuntu Kinetic Kudu (development branch)
Release: 22.10
2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center
network-manager-fortisslvpn:
  Installed: 1.2.10-0ubuntu3
  Candidate: 1.2.10-0ubuntu3
  Version table:
 *** 1.2.10-0ubuntu3 500
        500 http://ua.archive.ubuntu.com/ubuntu kinetic/universe amd64 Packages
        100 /var/lib/dpkg/status
network-manager-fortisslvpn-gnome:
  Installed: 1.2.10-0ubuntu3
  Candidate: 1.2.10-0ubuntu3
  Version table:
 *** 1.2.10-0ubuntu3 500
        500 http://ua.archive.ubuntu.com/ubuntu kinetic/universe amd64 Packages
        100 /var/lib/dpkg/status

3) What you expected to happen
When adding a VPN connection for Forti, configuration GUI appears.

4) What happened instead
unable to load VPN connection editor message in Identity tab
/var/log/syslog

Oct 11 16:22:42 ekachur-nout gnome-control-c[4110]: A floating object was finalized. This means that someone#012called g_object_unref() on an object that had only a floating#012reference; the initial floating reference is not owned by anyone#012and must be removed with g_object_ref_sink().
Oct 11 16:22:42 ekachur-nout gnome-control-c[4110]: message repeated 5 times: [ A floating object was finalized. This means that someone#012called g_object_unref() on an object that had only a floating#012reference; the initial floating reference is not owned by anyone#012and must be removed with g_object_ref_sink().]
Oct 11 16:22:45 ekachur-nout systemd[2532]: Started Application launched by gnome-session-binary.
Oct 11 16:22:47 ekachur-nout gnome-control-c[4110]: invalid (NULL) pointer instance
Oct 11 16:22:47 ekachur-nout gnome-control-c[4110]: g_signal_handlers_disconnect_matched: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
Oct 11 16:22:47 ekachur-nout gnome-control-c[4110]: file properties/nm-fortisslvpn-editor.c: line 484 (nm_fortisslvpn_editor_new): should not be reached
Oct 11 16:22:58 ekachur-nout gnome-shell[2649]: meta_window_set_stack_position_no_sync: assertion 'window->stack_position >= 0' failed

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Marius Gedminas (mgedmin)]

> Oct 11 16:22:47 ekachur-nout gnome-control-c[4110]: file properties/nm-fortisslvpn-editor.c: line 484 (nm_fortisslvpn_editor_new): should not be reached

This indicates that nm-fortisslvpn-dialog.ui could not be loaded. nm-fortisslvpn-dialog.ui has

    <requires lib="gtk+" version="3.4"/>

gnome-control-center in Ubuntu 22.10 uses GTK 4, not GTK 3.

The Ubuntu package is based on bersion 1.2.10, which is 3 years old. Upstream has ported to GTK 4 already. I think this package needs a SRU on the basis that this bug makes it unusable.

(Debian is still stuck on version 1.2.8, ouch.)

[Eduard Kachur (glite)]

Debian have done the transition: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=955493#23

[Eduard Kachur (glite)]

As a possible workaround, packages from Debian Bookworm can be installed:
https://packages.debian.org/bookworm/network-manager-fortisslvpn
https://packages.debian.org/bookworm/network-manager-fortisslvpn-gnome

[Milos Ivanovic (mivanovic)]

This bug also affects Ubuntu 23.04.

[Boris Erdmann (boris-erdmann)]

Can confirm it affects Ubuntu 23.04.
Can confirm the above workaround using the Debian Bookworm packages.

[P.Constantine (pconstantine)]

I can confirm that workaround does NOT work on 22.04
Because it requires `libnma-gtk4-0` which does not exist in 22.04