package tzdata 2020d-0ubuntu0.20.04 failed to install/upgrade: installed tzdata package post-installation script subprocess returned error exit status 128

[Michael Pollard]

Attempted to uninstall AisleRiot Solitaire which was preinstalled with Ubuntu 20.04. Received an error that the process was locked by aptd, rebooted, retried, crashed.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: tzdata 2020d-0ubuntu0.20.04
ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65
Uname: Linux 5.4.0-54-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.13
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Nov 27 18:25:55 2020
DuplicateSignature:
 package:tzdata:2020d-0ubuntu0.20.04
 Setting up tzdata (2020d-0ubuntu0.20.04) ...
 Use of uninitialized value $ret in string eq at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 134.
 dpkg: error processing package tzdata (--configure):
  installed tzdata package post-installation script subprocess returned error exit status 128
ErrorMessage: installed tzdata package post-installation script subprocess returned error exit status 128
InstallationDate: Installed on 2020-11-27 (0 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
PackageArchitecture: all
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2ubuntu0.1
SourcePackage: tzdata
Title: package tzdata 2020d-0ubuntu0.20.04 failed to install/upgrade: installed tzdata package post-installation script subprocess returned error exit status 128
UpgradeStatus: No upgrade log present (probably fresh install)