package bind9 1:9.7.3.dfsg-1ubuntu2.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

This is not important to me. It does not affect me because I don't use bind9.

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: bind9 1:9.7.3.dfsg-1ubuntu2.1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
Date: Mon Jun 27 21:06:34 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
RelatedPackageVersions:
 bind9utils 1:9.7.3.dfsg-1ubuntu2.1
 apparmor 2.6.1-0ubuntu3
SourcePackage: bind9
Title: package bind9 1:9.7.3.dfsg-1ubuntu2.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to natty on 2011-04-29 (65 days ago)
mtime.conffile..etc.apparmor.d.usr.sbin.named: 2010-09-02T22:08:09.173065
mtime.conffile..etc.bind.named.conf.default.zones: 2010-09-02T08:53:05.137869
mtime.conffile..etc.bind.named.conf.options: 2010-09-02T15:58:30.188334