package vanilla-gnome-default-settings 17.10.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[fitsum]

"update-alternatives: error: alternative /usr/share/gnome-shell/theme/gnome-shell.css for gdm3.css not registered; not setting"

I tried to install vanilla gnome desktop on a fresh installation of ubuntu 17.10. Installation went ok but at the end it failed to configure properly some gnome settings. I'm now able to use gnome though.

ProblemType: Package
DistroRelease: Ubuntu 17.10
Package: vanilla-gnome-default-settings 17.10.3
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
NonfreeKernelModules: wl nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
Date: Sat Oct 21 13:38:22 2017
ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationDate: Installed on 2017-10-19 (1 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.3, python3-minimal, 3.6.3-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.14, python-minimal, 2.7.14-2ubuntu1
RelatedPackageVersions:
 dpkg 1.18.24ubuntu1
 apt 1.5
SourcePackage: ubuntu-gnome-default-settings
Title: package vanilla-gnome-default-settings 17.10.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Mohammad Anwar Shah (mohammadanwarshah)]

Any update on this?

[Bogdan Harjoc (harjoc-gmail)]

Still reproduces on Ubuntu-18.04 final, fresh install.

[Tim Lunn (darkxst)]

Bogdan, there is a fix pending on bug 1761014 (which this bug is marked a duplicate of)

https://launchpadlibrarian.net/367853119/ubuntu-gnome-default-settings_18.04.0_source.changes