package gdm 3.0.4-0ubuntu14 failed to install/upgrade: subprocess installed post-removal script returned error exit status 128

[spcwingo]

This happened when trying to remove gdm. I used the standard "sudo apt-get remove --purge gdm" command.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: gdm 3.0.4-0ubuntu14
ProcVersionSignature: Ubuntu 3.2.0-10.18-generic 3.2.1
Uname: Linux 3.2.0-10-generic i686
ApportVersion: 1.91-0ubuntu1
AptOrdering: gdm: Purge
Architecture: i386
Date: Thu Jan 26 20:10:13 2012
ErrorMessage: subprocess installed post-removal script returned error exit status 128
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20111204)
SourcePackage: gdm
Title: package gdm 3.0.4-0ubuntu14 failed to install/upgrade: subprocess installed post-removal script returned error exit status 128
UpgradeStatus: No upgrade log present (probably fresh install)