package libp11-kit-gnome-keyring 3.27.4-1ubuntu1 failed to install/upgrade: libp11-kit-gnome-keyring:all 3.27.4-2ubuntu1 (Multi-Arch: no) is not co-installable with libp11-kit-gnome-keyring which has multiple installed instances

[David Kastrup]

I think this occured during a large package update.

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: libp11-kit-gnome-keyring 3.27.4-1ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-32.35-lowlatency 4.13.13
Uname: Linux 4.13.0-32-lowlatency x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
Date: Wed Feb 28 23:40:38 2018
Dependencies:
 gcc-8-base 8-20180218-1ubuntu1
 libc6 2.26-0ubuntu2.1
 libgcc1 1:8-20180218-1ubuntu1
DuplicateSignature:
 package:libp11-kit-gnome-keyring:3.27.4-1ubuntu1
 Unpacking glib-networking-common (2.55.90-1) over (2.54.1-2) ...
 dpkg: error processing archive /tmp/apt-dpkg-install-Ko9Wpj/040-libp11-kit-gnome-keyring_3.27.4-2ubuntu1_all.deb (--unpack):
  libp11-kit-gnome-keyring:all 3.27.4-2ubuntu1 (Multi-Arch: no) is not co-installable with libp11-kit-gnome-keyring which has multiple installed instances
ErrorMessage: libp11-kit-gnome-keyring:all 3.27.4-2ubuntu1 (Multi-Arch: no) is not co-installable with libp11-kit-gnome-keyring which has multiple installed instances
InstallationDate: Installed on 2011-10-14 (2329 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
Python3Details: /usr/bin/python3.6, Python 3.6.4+, python3-minimal, 3.6.4-1
PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-4
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu1
 apt 1.6~alpha7ubuntu2
SourcePackage: gnome-keyring
Title: package libp11-kit-gnome-keyring 3.27.4-1ubuntu1 failed to install/upgrade: libp11-kit-gnome-keyring:all 3.27.4-2ubuntu1 (Multi-Arch: no) is not co-installable with libp11-kit-gnome-keyring which has multiple installed instances
UpgradeStatus: Upgraded to bionic on 2018-01-23 (37 days ago)

[Hans-Christian Noren Egtvedt (egtvedt)]

I worked around the problem by explicit removing the i386 package:
sudo dpkg --purge libp11-kit-gnome-keyring:i386

[Launchpad Janitor (janitor)]

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