Pacote: plasmate
Você tem o pacote plasmate instalado?
Com o Kubuntu 13.04 / KDE 4.10.5:
:~$ apt-file search plasmawallpaperviewer
kde-l10n-id: /usr/share/locale/id/LC_MESSAGES/plasmawallpaperviewer.mo
plasmate: /usr/bin/plasmawallpaperviewer
:~$ apt-cache show plasmate
Package: plasmate
Priority: extra
Section: universe/kde
...
Description: IDE tailored for development of Plasma components
A small IDE tailored for development of Plasma components,
such as Widgets, Runners, Dataengines.
Homepage: http://projects.kde.org/plasmate
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