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

[jithin tom]

i've installed gnome3 in ubuntu 11.04 and uninstalled the gnome3 ffrom my system. after that i'm getting the error "package installation failed" after every install or uninstall of softwares

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: gnome-icon-theme 2.31.0-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-13.55-generic 2.6.38.8
Uname: Linux 2.6.38-13-generic i686
AptOrdering:
 usb-creator-gtk: Remove
 gnome-icon-theme: Configure
 evince: Configure
 gnome-control-center: Configure
Architecture: i386
Date: Sat Feb 25 11:11:17 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 2011-10-04 (143 days ago)