package lightdm-gtk-greeter 1.8.5-1ubuntu2~ubuntu14.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[Jan]

while updating and while booting

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: lightdm-gtk-greeter 1.8.5-1ubuntu2~ubuntu14.04.1
ProcVersionSignature: Ubuntu 3.13.0-48.80-generic 3.13.11-ckt16
Uname: Linux 3.13.0-48-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.8
Architecture: amd64
Date: Sun Mar 29 17:43:18 2015
DuplicateSignature: package:lightdm-gtk-greeter:1.8.5-1ubuntu2~ubuntu14.04.1:subprocess installed post-installation script returned error exit status 2
ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationDate: Installed on 2013-11-03 (510 days ago)
InstallationMedia: Xubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130214)
SourcePackage: lightdm-gtk-greeter
Title: package lightdm-gtk-greeter 1.8.5-1ubuntu2~ubuntu14.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: Upgraded to trusty on 2014-08-12 (228 days ago)
modified.conffile..etc.lightdm.lightdm.gtk.greeter.ubuntu.conf: [deleted]

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sean Davis (bluesabre)]

Apt issue. Closing out.