package ubuntu-wallpapers-extra (not installed) failed to install/upgrade: trying to overwrite '/usr/share/backgrounds/PrimulaRed.jpg', which is also in package ubuntu-wallpapers-karmic 0.34.0

[Newfie]

Tried to install this package and got an error when doing so. I ignored it.

I rebooted my PC just now, and this bug thing popped up. No idea what triggered it :)

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: ubuntu-wallpapers-extra (not installed)
ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
Uname: Linux 3.2.0-22-generic x86_64
ApportVersion: 2.0-0ubuntu4
Architecture: amd64
Date: Sun Apr 8 09:49:56 2012
ErrorMessage: trying to overwrite '/usr/share/backgrounds/PrimulaRed.jpg', which is also in package ubuntu-wallpapers-karmic 0.34.0
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120308)
SourcePackage: ubuntu-wallpapers-extra
Title: package ubuntu-wallpapers-extra (not installed) failed to install/upgrade: trying to overwrite '/usr/share/backgrounds/PrimulaRed.jpg', which is also in package ubuntu-wallpapers-karmic 0.34.0
UpgradeStatus: No upgrade log present (probably fresh install)