package cups-daemon 1.6.1-0ubuntu15 failed to install/upgrade: trying to overwrite '/usr/share/man/man7/backend.7.gz', which is also in package cups 1.6.1-0ubuntu15

[Msirdian]

i got this error message during upgrading my system

ProblemType: Package
DistroRelease: Ubuntu 13.04
Package: cups-daemon 1.6.1-0ubuntu15
ProcVersionSignature: Ubuntu 3.8.0-0.2-generic 3.8.0-rc3
Uname: Linux 3.8.0-0-generic i686
ApportVersion: 2.8-0ubuntu1
Architecture: i386
CupsErrorLog:
 E [14/Jan/2013:08:27:04 +0000] Unknown directive SystemGroup on line 16 of /etc/cups/cupsd.conf.
 E [14/Jan/2013:08:30:47 +0000] Unknown directive SystemGroup on line 16 of /etc/cups/cupsd.conf.
Date: Mon Jan 14 08:30:47 2013
DuplicateSignature:
 Unpacking replacement cups-daemon ...
 dpkg: error processing /var/cache/apt/archives/cups-daemon_1.6.1-1_i386.deb (--unpack):
  trying to overwrite '/usr/share/man/man7/backend.7.gz', which is also in package cups 1.6.1-0ubuntu15
ErrorMessage: trying to overwrite '/usr/share/man/man7/backend.7.gz', which is also in package cups 1.6.1-0ubuntu15
InstallationDate: Installed on 2012-11-09 (65 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20121109)
KernLog:

Lpstat:
 device for Fax:3: tpvmlp://Fax:3
 device for HP_LaserJet_4345_mfp_PCL_6_Reading:2: tpvmlp://HP_LaserJet_4345_mfp_PCL_6_Reading:2
 device for Microsoft_XPS_Document_Writer:1: tpvmlp://Microsoft_XPS_Document_Writer:1
Lsusb:
 Bus 002 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse
 Bus 002 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: VMware, Inc. VMware Virtual Platform
MarkForUpload: True
Papersize: letter
PpdFiles: VMware_Virtual_Printer: Generic PostScript Printer Foomatic/Postscript (recommended)
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-3.8.0-0-generic root=UUID=dea2da44-b0ee-4ce0-b750-3c479344e80e ro quiet splash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-0-generic root=UUID=dea2da44-b0ee-4ce0-b750-3c479344e80e ro quiet splash
SourcePackage: cups
Title: package cups-daemon 1.6.1-0ubuntu15 failed to install/upgrade: trying to overwrite '/usr/share/man/man7/backend.7.gz', which is also in package cups 1.6.1-0ubuntu15
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/02/2012
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.board.version: None
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd07/02/2012:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
dmi.product.name: VMware Virtual Platform
dmi.product.version: None
dmi.sys.vendor: VMware, Inc.

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1099242, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.