package request-tracker4 4.0.4-2ubuntu0.1 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 10

[max knorr]

package request-tracker4 4.0.4-2ubuntu0.1 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 10
package request-tracker3.8 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 10

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: request-tracker4 4.0.4-2ubuntu0.1
ProcVersionSignature: Ubuntu 3.2.0-23.31-lowlatency 3.2.14
Uname: Linux 3.2.0-23-lowlatency x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu13
AptOrdering:
 request-tracker4: Remove
 dbus: Configure
 dbus-x11: Configure
 request-tracker3.8: Configure
Architecture: amd64
Date: Fri Sep 21 03:17:41 2012
DpkgTerminalLog:
 Removing request-tracker4 ...
 dpkg: error processing request-tracker4 (--remove):
  subprocess installed pre-removal script returned error exit status 10
ErrorMessage: subprocess installed pre-removal script returned error exit status 10
InstallationMedia: Ubuntu-Studio 12.04 "Precise Pangolin" - Release amd64 (20120425)
PackageArchitecture: all
SourcePackage: request-tracker4
Title: package request-tracker4 4.0.4-2ubuntu0.1 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 10
UpgradeStatus: No upgrade log present (probably fresh install)