package isc-dhcp-server 4.2.4-5ubuntu2.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Bill]

failed to remove software

ProblemType: Package
DistroRelease: Ubuntu 13.04
Package: isc-dhcp-server 4.2.4-5ubuntu2.1
ProcVersionSignature: Ubuntu 3.8.0-25.37-generic 3.8.13
Uname: Linux 3.8.0-25-generic i686
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: i386
Date: Sun Jun 23 14:23:45 2013
DhServerLeases:

ErrorMessage: subprocess installed post-installation script returned error exit status 1
KernLog:
 Jun 23 14:22:03 bill-laptop kernel: [36257.583634] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
 Jun 23 14:22:03 bill-laptop kernel: [36257.587424] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
 Jun 23 14:23:47 bill-laptop kernel: [36362.501204] type=1400 audit(1372011827.390:35): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=13592 comm="apparmor_parser"
 Jun 23 14:23:47 bill-laptop kernel: [36362.501461] type=1400 audit(1372011827.390:36): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=13592 comm="apparmor_parser"
 Jun 23 14:23:47 bill-laptop kernel: [36362.501552] type=1400 audit(1372011827.390:37): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=13592 comm="apparmor_parser"
MarkForUpload: True
ProcCmdline: root=UUID=1c258d0c-ed2c-4008-bb82-4b84cbebe4fd ro quiet splash
SourcePackage: isc-dhcp
Title: package isc-dhcp-server 4.2.4-5ubuntu2.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to raring on 2013-06-01 (22 days ago)