package gnome-icon-theme 2.31.0-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[KIRAN]

An dependency error occured for evolution,empathy etc and this happens for all the new packages which are installed.

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: gnome-icon-theme 2.31.0-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-13.53-generic 2.6.38.8
Uname: Linux 2.6.38-13-generic i686
Architecture: i386
Date: Wed Feb 15 10:02:31 2012
ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
PackageArchitecture: all
SourcePackage: gnome-icon-theme
Title: package gnome-icon-theme 2.31.0-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: Upgraded to natty on 2012-02-01 (14 days ago)