gnome-menus 3.13.3-6ubuntu5 failed to install/upgrade: triggers looping, abandoned - gnome-menus -> gconf2

apt log session:

...
dpkg: a cycle was encountered while processing the triggers:
  the packet chain of these triggers are or may be responsible:
   gnome-menus -> gconf2
  triggers of pending packets that are or may be insoluble:
   gnome-menus: / usr / share / applications
   libc-bin: ldconfig
   gconf2: / usr / share / GConf / gsettings
dpkg: error processing package gnome-menus (--configure):
  loop triggers, abandoned

...

$ systemctl status apport.service

● apport.service - LSB: automatic crash report generation
   Loaded: loaded (/etc/init.d/apport; generated; vendor preset: enabled)
   Active: failed (Result: timeout) since Thu 2017-12-14 08:43:36 -02; 1h 14min ago
     Docs: man:systemd-sysv-generator(8)
    Tasks: 1 (limit: 4915)
   CGroup: /system.slice/apport.service
           └─9190 plymouth --ping

dez 14 08:38:36 etm systemd[1]: Starting LSB: automatic crash report generation...
dez 14 08:43:36 etm systemd[1]: apport.service: Start operation timed out. Terminating.
dez 14 08:43:36 etm systemd[1]: apport.service: Failed with result 'timeout'.
dez 14 08:43:36 etm systemd[1]: Failed to start LSB: automatic crash report generation.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-menus 3.13.3-6ubuntu5
ProcVersionSignature: Ubuntu 4.14.0-11.13-generic 4.14.3
Uname: Linux 4.14.0-11-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.8-0ubuntu4
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Dec 14 09:50:52 2017
Dependencies:

InstallationDate: Installed on 2017-09-29 (75 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Beta amd64 (20170929)
SourcePackage: gnome-menus
UpgradeStatus: No upgrade log present (probably fresh install)