package libunity9 7.1.4+14.04.20140210-0ubuntu1 failed to install/upgrade: trying to overwrite shared '/usr/bin/unity-scope-loader', which is different from other instances of package libunity9:i386

[jonathan]

I installed lubuntu, a clean install. Then on top of that I installed older packages through dpkg. These packages were also from a relatively clean install. During dpkg install libunity failed.

After a reboot of the system I get "No session for pid ####" which is for lxsession -s Lubuntu -e LXDE. In the logout menu shutdown and reboot is also missing. This bug might be related to this one: https://bugs.launchpad.net/ubuntu/+source/policykit-desktop-privileges/+bug/1240336

I'm using Lubuntu 14.10

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libunity9 7.1.4+14.04.20140210-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Mon Jun 2 12:36:29 2014
DuplicateSignature: package:libunity9:7.1.4+14.04.20140210-0ubuntu1:trying to overwrite shared '/usr/bin/unity-scope-loader', which is different from other instances of package libunity9:i386
ErrorMessage: trying to overwrite shared '/usr/bin/unity-scope-loader', which is different from other instances of package libunity9:i386
InstallationDate: Installed on 2014-06-02 (0 days ago)
InstallationMedia: Lubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
SourcePackage: libunity
Title: package libunity9 7.1.4+14.04.20140210-0ubuntu1 failed to install/upgrade: trying to overwrite shared '/usr/bin/unity-scope-loader', which is different from other instances of package libunity9:i386
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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