package libgtk2.0-cil 2.12.10-2ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

don't know what this means : failed to install package libgtk2.0-cil 2.12.10-2ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libgtk2.0-cil 2.12.10-2ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
Uname: Linux 3.2.0-22-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0-0ubuntu4
Architecture: i386
Date: Thu Apr 5 23:35:49 2012
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
SourcePackage: gtk-sharp2
Title: package libgtk2.0-cil 2.12.10-2ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to precise on 2012-04-05 (1 days ago)