package bluez 4.91-0ubuntu1 failed to install/upgrade: il sottoprocesso vecchio script di post-installation ha restituito lo stato di errore 1

Binary package hint: bluez

At startup after an upgrade, I received this message error about bluez.

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: bluez 4.91-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sat May 21 18:58:36 2011
ErrorMessage: il sottoprocesso vecchio script di post-installation ha restituito lo stato di errore 1
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
InterestingModules: sco bnep l2cap btusb bluetooth
MachineType: System manufacturer P5K SE
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=2e187669-b3f0-4f40-8ddd-5c95f911fb40 ro quiet splash vt.handoff=7
SourcePackage: bluez
Title: package bluez 4.91-0ubuntu1 failed to install/upgrade: il sottoprocesso vecchio script di post-installation ha restituito lo stato di errore 1
UpgradeStatus: Upgraded to natty on 2011-05-07 (14 days ago)
dmi.bios.date: 01/02/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0901
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5K SE
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0901:bd01/02/2008:svnSystemmanufacturer:pnP5KSE:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5KSE:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: P5K SE
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
hciconfig:
 hci0: Type: BR/EDR Bus: USB
  BD Address: 00:13:46:11:81:B7 ACL MTU: 192:8 SCO MTU: 64:8
  UP RUNNING
  RX bytes:356 acl:0 sco:0 events:13 errors:0
  TX bytes:53 acl:0 sco:0 commands:13 errors:0