package cups 1.5.2-5 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1

while upgrading ubuntu after installing ubuntu 12.04 alpha 2

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: cups 1.5.2-5
ProcVersionSignature: Ubuntu 3.2.0-12.21-generic 3.2.2
Uname: Linux 3.2.0-12-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 1.93-0ubuntu2
Architecture: amd64
CupsErrorLog:

Date: Tue Feb 28 15:20:02 2012
ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 1
Lpstat: Error: command ['lpstat', '-v'] failed with exit code -11: p11-kit: duplicate configured module: gnome-keyring-module: /usr/lib/x86_64-linux-gnu/pkcs11/gnome-keyring-pkcs11.so
MachineType: Hewlett-Packard HP 625
Papersize: a4
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-12-generic root=UUID=7d39fe74-1ee4-4ddc-aea3-01a1014761c6 ro quiet splash vt.handoff=7
SourcePackage: cups
Title: package cups 1.5.2-5 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to precise on 2012-02-28 (0 days ago)
dmi.bios.date: 08/13/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68DVA Ver. F.03
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 1475
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 72.0E
dmi.chassis.asset.tag: CNU03937YP
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68DVAVer.F.03:bd08/13/2010:svnHewlett-Packard:pnHP625:pvr:rvnHewlett-Packard:rn1475:rvrKBCVersion72.0E:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP 625
dmi.sys.vendor: Hewlett-Packard