package libqtcore4 4:4.8.3+dfsg-0ubuntu3 failed to install/upgrade: trying to overwrite shared '/etc/xdg/Trolltech.conf', which is different from other instances of package libqtcore4:i386

[Paul Hoell]

As the title says, when i try to --reinstall libqtcore4 on my Ubuntu 12.10 64bit, i get this error. It seems, that this is only the case if both libqtcore4 and libqtcore4:i386 are installed side-by-side.

It's fixed easily enough with sudo apt-get update && sudo apt-get dist-upgrade on my system, but i had to debug at least one other case where this error made it nearly impossible to install Skype from the partner repo.

ProblemType: Package
DistroRelease: Ubuntu 12.10
Package: libqtcore4 4:4.8.3+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu6
AptOrdering:
 libqtcore4: Install
 libqtcore4: Install
 libqtcore4: Configure
 libqtcore4: Configure
Architecture: amd64
Date: Sat Nov 3 13:44:29 2012
ErrorMessage: package libqtcore4 4:4.8.3+dfsg-0ubuntu3 failed to install/upgrade: trying to overwrite shared '/etc/xdg/Trolltech.conf', which is different from other instances of package libqtcore4:i386
InstallationDate: Installed on 2012-09-30 (34 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta amd64 (20120930)
MarkForUpload: True
SourcePackage: qt4-x11
Title: package libqtcore4 4:4.8.3+dfsg-0ubuntu3 failed to install/upgrade: trying to overwrite shared '/etc/xdg/Trolltech.conf', which is different from other instances of package libqtcore4:i386
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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