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

[iGadget]

Just installed 12.04 Alpha 2 (without downloading updates during installation) and ran updates after booting the system. Then this error popped up.

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
ApportVersion: 1.93-0ubuntu2
Architecture: amd64
CupsErrorLog:

Date: Thu Mar 1 20:04:45 2012
ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120201.1)
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 ProBook 6550b
Papersize: letter
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-12-generic root=UUID=238be045-ab7e-4341-a538-8e05cdde9421 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 2012-03-01 (0 days ago)
dmi.bios.date: 10/04/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68CDE Ver. F.03
dmi.board.name: 146D
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 73.11
dmi.chassis.asset.tag: CNU04615V0
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68CDEVer.F.03:bd10/04/2010:svnHewlett-Packard:pnHPProBook6550b:pvr:rvnHewlett-Packard:rn146D:rvrKBCVersion73.11:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 6550b
dmi.sys.vendor: Hewlett-Packard