package greybird-gtk-theme (not installed) failed to install/upgrade: Versuch, »/usr/share/themes/Greybird-compact/xfwm4/hide-active.png« zu überschreiben, welches auch in Paket shimmer-themes 1.7.3-0ubuntu1 ist

[LAZA]

Updated my VM with 14.10, got this error while installing updates.

ProblemType: Package
DistroRelease: Ubuntu 14.10
Package: greybird-gtk-theme (not installed)
ProcVersionSignature: Ubuntu 3.16.0-4.9-generic 3.16.0-rc5
Uname: Linux 3.16.0-4-generic i686
ApportVersion: 2.14.4-0ubuntu2
Architecture: i386
Date: Wed Jul 23 18:47:49 2014
DuplicateSignature: package:greybird-gtk-theme:(not installed):Versuch, »/usr/share/themes/Greybird-compact/xfwm4/hide-active.png« zu überschreiben, welches auch in Paket shimmer-themes 1.7.3-0ubuntu1 ist
ErrorMessage: Versuch, »/usr/share/themes/Greybird-compact/xfwm4/hide-active.png« zu überschreiben, welches auch in Paket shimmer-themes 1.7.3-0ubuntu1 ist
InstallationDate: Installed on 2014-07-21 (1 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2)
SourcePackage: shimmer-themes
Title: package greybird-gtk-theme (not installed) failed to install/upgrade: Versuch, »/usr/share/themes/Greybird-compact/xfwm4/hide-active.png« zu überschreiben, welches auch in Paket shimmer-themes 1.7.3-0ubuntu1 ist
UpgradeStatus: Upgraded to utopic on 2014-07-21 (1 days ago)