package kdiff3-qt (not installed) failed to install/upgrade: conflicting packages - not installing kdiff3-qt

[John Coleman]

Was trying to install the package "Nautilus Compare Extension Preferences" from the Ubuntu Software Center and got the following error (please note I had all add-on's checkmarked for this package).

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: kdiff3-qt (not installed)
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu6
Architecture: amd64
Date: Fri Apr 27 01:36:41 2012
ErrorMessage: conflicting packages - not installing kdiff3-qt
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
SourcePackage: kdiff3
Title: package kdiff3-qt (not installed) failed to install/upgrade: conflicting packages - not installing kdiff3-qt
UpgradeStatus: No upgrade log present (probably fresh install)