package doc-base 0.10.7 failed to install/upgrade: subprocess installed post-installation script returned error exit status 3

[Billy91]

$ update-manager
/usr/bin/update-manager:28: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk
/usr/lib/python3/dist-packages/UpdateManager/UnitySupport.py:29: PyGIWarning: Dbusmenu was imported without specifying a version first. Use gi.require_version('Dbusmenu', '0.4') before import to ensure that the right version gets loaded.
  from gi.repository import Dbusmenu, Unity
/usr/lib/python3/dist-packages/UpdateManager/UnitySupport.py:29: PyGIWarning: Unity was imported without specifying a version first. Use gi.require_version('Unity', '7.0') before import to ensure that the right version gets loaded.
  from gi.repository import Dbusmenu, Unity
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
Use of uninitialized value $template in exists at /usr/share/perl5/Debconf/Template.pm line 86, <> line 7.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 40, <> line 7.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 40, <> line 7.
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
Use of uninitialized value $template in exists at /usr/share/perl5/Debconf/Template.pm line 86, <> line 7.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 40, <> line 7.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 40, <> line 7.
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
Use of uninitialized value $template in exists at /usr/share/perl5/Debconf/Template.pm line 86, <> line 7.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 40, <> line 7.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 40, <> line 7.
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
Use of uninitialized value $template in exists at /usr/share/perl5/Debconf/Template.pm line 86, <> line 3.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 40, <> line 3.
Use of uninitialized value $item in exists at /usr/share/perl5/Debconf/DbDriver/Cache.pm line 40, <> line 3.
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
billy@billy-P35-DS3P:~$ ^C
billy@billy-P35-DS3P:~$
billy@billy-P35-DS3P:~$

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: doc-base 0.10.7
ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98
Uname: Linux 4.4.0-112-generic i686
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: i386
Date: Wed Mar 14 17:19:35 2018
ErrorMessage: subprocess installed post-installation script returned error exit status 3
InstallationDate: Installed on 2015-12-19 (815 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta i386 (20150805)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.3
 apt 1.2.25
SourcePackage: doc-base
Title: package doc-base 0.10.7 failed to install/upgrade: subprocess installed post-installation script returned error exit status 3
UpgradeStatus: Upgraded to xenial on 2016-10-07 (522 days ago)

[Launchpad Janitor (janitor)]

This bug was fixed in the package doc-base - 0.11

---------------
doc-base (0.11) unstable; urgency=medium

  [ Lev Lamberov ]
  * Fix typo in documentation

  [ Eduard Bloch ]
  * Fix typo in German translation

  [ Robert Luberda ]
  * Initial Portuguese translation of manpage (closes: #964798). Thanks
    to Américo Monteiro.
  * Fix a long-standing issue with doc-base trigger failures on upgrades of
    packages that provided doc-base files from which install-docs could not
    generate output control file in /var/lib/doc-base documents. In such a
    case doc-base did not store information about input /usr/share/doc-base
    files in its files database, what resulted in trigger failure on later
    upgrade of the package (closes: #735418, #931705, LP: #1385362,
    LP: #1607755, LP: #1726384, LP: #1755880).
  * Remove support for scrollkeeper/rarian, as the packages have been
    already removed from Debian (closes: #928635). Unfuzzy translations
    of documentation.
  * Bump debhelper's compat to 13.
  * Standards-Version: 4.5.1.

 -- Robert Luberda <email address hidden> Tue, 15 Dec 2020 08:09:48 +0100