package bacula-common-mysql (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/bacula/libbaccats.la', which is also in package bacula-common 5.2.1-0ubuntu2

Selecting previously unselected package bacula-common.
(Reading database ... 376051 files and directories currently installed.)
Unpacking bacula-common (from .../bacula-common_5.2.1-0ubuntu2_amd64.deb) ...
Unpacking bacula-common-mysql (from .../bacula-common-mysql_5.2.1-0ubuntu2_amd64.deb) ...
dpkg: error processing /var/cache/apt/archives/bacula-common-mysql_5.2.1-0ubuntu2_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/bacula/libbaccats.la', which is also in package bacula-common 5.2.1-0ubuntu2
Selecting previously unselected package bacula-console.
Unpacking bacula-console (from .../bacula-console_5.2.1-0ubuntu2_amd64.deb) ...
Processing triggers for man-db ...
Errors were encountered while processing:
 /var/cache/apt/archives/bacula-common-mysql_5.2.1-0ubuntu2_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: bacula-common-mysql (not installed)
ProcVersionSignature: Ubuntu 3.2.0-8.14-generic 3.2.0
Uname: Linux 3.2.0-8-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.90-0ubuntu1
Architecture: amd64
Date: Fri Jan 6 20:40:00 2012
DpkgTerminalLog:
 Unpacking bacula-common (from .../bacula-common_5.2.1-0ubuntu2_amd64.deb) ...
 Unpacking bacula-common-mysql (from .../bacula-common-mysql_5.2.1-0ubuntu2_amd64.deb) ...
 dpkg: error processing /var/cache/apt/archives/bacula-common-mysql_5.2.1-0ubuntu2_amd64.deb (--unpack):
  trying to overwrite '/usr/lib/bacula/libbaccats.la', which is also in package bacula-common 5.2.1-0ubuntu2
DuplicateSignature:
 Unpacking bacula-common-mysql (from .../bacula-common-mysql_5.2.1-0ubuntu2_amd64.deb) ...
 dpkg: error processing /var/cache/apt/archives/bacula-common-mysql_5.2.1-0ubuntu2_amd64.deb (--unpack):
  trying to overwrite '/usr/lib/bacula/libbaccats.la', which is also in package bacula-common 5.2.1-0ubuntu2
ErrorMessage: trying to overwrite '/usr/lib/bacula/libbaccats.la', which is also in package bacula-common 5.2.1-0ubuntu2
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
SourcePackage: bacula
Title: package bacula-common-mysql (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/bacula/libbaccats.la', which is also in package bacula-common 5.2.1-0ubuntu2
UpgradeStatus: Upgraded to precise on 2011-12-18 (20 days ago)