Проблема с установкой Oxygen-Transparent темы на Kubuntu

Я бы хотел установить тему Oxygen-Transparent на Kubuntu 12.04. (the KDE version is 4.11.2)

Чтобы установить, что:

sudo apt-get install build-essential cmake kdelibs5-dev

, а затем:

sudo apt-get install kdebase-workspace-dev libxrender-dev libx11-dev git

Приведенная выше команда выдает ошибку:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
git is already the newest version.
libx11-dev is already the newest version.
libx11-dev set to manually installed.
libxrender-dev is already the newest version.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 kdebase-workspace-dev : Depends: kde-workspace-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Скажите, пожалуйста, что мне здесь не хватает?

Любая помощь будет принята с благодарностью.