package fonts-guru-extra 2.0-4ubuntu0.1 failed to install/upgrade: new fonts-guru-extra package pre-installation script subprocess returned error exit status 1

[Gazza]

Triggered an apt update via terminal as usual
sudo apt update
sudo apt upgrade
sudo apt dist-upgrade

* the upgrade finished with an error:
```
Errors were encountered while processing:
 /tmp/apt-dpkg-install-a12H59/33-fonts-guru-extra_2.0-4ubuntu0.1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
```

* at dist-upgrade a prompt appeared:
```
Setting up fonts-guru-extra (2.0-4ubuntu0.1) ...

Configuration file '/etc/fonts/conf.avail/65-0-fonts-guru-extra.conf'
 ==> Deleted (by you or by a script) since installation.
 ==> Package distributor has shipped an updated version.
   What would you like to do about it ? Your options are:
    Y or I : install the package maintainer's version
    N or O : keep your currently-installed version
      D : show the differences between the versions
      Z : start a shell to examine the situation
 The default action is to keep your current version.
*** 65-0-fonts-guru-extra.conf (Y/I/N/O/D/Z) [default=N] ? y
Installing new version of config file /etc/fonts/conf.avail/65-0-fonts-guru-extra.conf ...
```

As soon as I pressed enter a system error message dialogue appeared about the same package.

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: fonts-guru-extra 2.0-4ubuntu0.1
ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18
Uname: Linux 4.15.0-23-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
Date: Tue Jun 26 09:17:46 2018
Dependencies:

ErrorMessage: new fonts-guru-extra package pre-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2017-11-11 (226 days ago)
InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412)
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.1
SourcePackage: fonts-guru-extra
Title: package fonts-guru-extra 2.0-4ubuntu0.1 failed to install/upgrade: new fonts-guru-extra package pre-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to bionic on 2018-06-20 (5 days ago)

[Gunnar Hjalmarsson (gunnarhj)]

Hmm.. The new version was there to prevent odd messages from the package system. I suppose this is history now?

[Launchpad Janitor (janitor)]

[Expired for fonts-guru-extra (Ubuntu) because there has been no activity for 60 days.]