package libasound2 1.0.25-4ubuntu3.1 [modified: usr/share/alsa/alsa.conf] failed to install/upgrade: trying to overwrite shared '/usr/share/alsa/alsa.conf', which is different from other instances of package libasound2:i386

Error while updating the package

ProblemType: Package
DistroRelease: Ubuntu 13.04
Package: libasound2 1.0.25-4ubuntu3.1 [modified: usr/share/alsa/alsa.conf]
ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
Uname: Linux 3.8.0-31-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
Date: Sun Sep 29 12:20:38 2013
DpkgTerminalLog:
 Unpacking libasound2:i386 (from .../libasound2_1.0.25-4ubuntu3.1_i386.deb) ...
 dpkg: error processing /var/cache/apt/archives/libasound2_1.0.25-4ubuntu3.1_i386.deb (--unpack):
  trying to overwrite shared '/usr/share/alsa/alsa.conf', which is different from other instances of package libasound2:i386
DuplicateSignature: package:libasound2:1.0.25-4ubuntu3.1 [modified: usr/share/alsa/alsa.conf]:trying to overwrite shared '/usr/share/alsa/alsa.conf', which is different from other instances of package libasound2:i386
ErrorMessage: trying to overwrite shared '/usr/share/alsa/alsa.conf', which is different from other instances of package libasound2:i386
InstallationDate: Installed on 2013-05-21 (130 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
SourcePackage: alsa-lib
Title: package libasound2 1.0.25-4ubuntu3.1 [modified: usr/share/alsa/alsa.conf] failed to install/upgrade: trying to overwrite shared '/usr/share/alsa/alsa.conf', which is different from other instances of package libasound2:i386
UpgradeStatus: No upgrade log present (probably fresh install)