package libgtk-3-0 3.4.2-0ubuntu0.3 failed to install/upgrade: conffile './etc/gtk-3.0/settings.ini' is not in sync with other instances of the same package

[Majal]

I just installed and there was trouble... :(

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libgtk-3-0 3.4.2-0ubuntu0.3
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
Uname: Linux 3.2.0-26-generic x86_64
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
Date: Mon Jul 23 16:25:57 2012
DuplicateSignature:
 Unpacking libgtk-3-0:i386 (from .../libgtk-3-0_3.4.2-0ubuntu0.3_i386.deb) ...
 dpkg: error processing /var/cache/apt/archives/libgtk-3-0_3.4.2-0ubuntu0.3_i386.deb (--unpack):
  conffile './etc/gtk-3.0/settings.ini' is not in sync with other instances of the same package
ErrorMessage: conffile './etc/gtk-3.0/settings.ini' is not in sync with other instances of the same package
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
SourcePackage: gtk+3.0
Title: package libgtk-3-0 3.4.2-0ubuntu0.3 failed to install/upgrade: conffile './etc/gtk-3.0/settings.ini' is not in sync with other instances of the same package
UpgradeStatus: Upgraded to precise on 2012-05-05 (78 days ago)
mtime.conffile..etc.gtk.3.0.settings.ini: 2012-05-19T00:20:41