package libqtcore4 4:4.8.1-0ubuntu4.3 failed to install/upgrade: conffile './etc/xdg/Trolltech.conf' is not in sync with other instances of the same package

[Amit Kumar]

System starts getting this error after installing ia32-libs

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libqtcore4 4:4.8.1-0ubuntu4.3
ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
Uname: Linux 3.2.0-35-generic x86_64
ApportVersion: 2.0.1-0ubuntu15.1
Architecture: amd64
Date: Thu Jan 10 14:59:55 2013
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-oneiric-amd64-20111116-1
DuplicateSignature:
 Unpacking libqtcore4:i386 (from .../libqtcore4_4%3a4.8.1-0ubuntu4.3_i386.deb) ...
 dpkg: error processing /var/cache/apt/archives/libqtcore4_4%3a4.8.1-0ubuntu4.3_i386.deb (--unpack):
  conffile './etc/xdg/Trolltech.conf' is not in sync with other instances of the same package
ErrorMessage: conffile './etc/xdg/Trolltech.conf' is not in sync with other instances of the same package
InstallationMedia: Ubuntu 11.10 "Oneiric" - Build amd64 LIVE Binary 20111116-18:24
MarkForUpload: True
SourcePackage: qt4-x11
Title: package libqtcore4 4:4.8.1-0ubuntu4.3 failed to install/upgrade: conffile './etc/xdg/Trolltech.conf' is not in sync with other instances of the same package
UpgradeStatus: Upgraded to precise on 2013-01-10 (0 days ago)
modified.conffile..etc.xdg.Trolltech.conf:
 [qt]
 4.8\libraryPath=/usr/lib/kde4/plugins
mtime.conffile..etc.xdg.Trolltech.conf: 2012-04-11T14:27:48