E: Невозможно найти пакет nepomuk-core-dev

Я установил Ubuntu 12.04 и хочу установить nepomuk-core-dev для создания центра плазменных сред ( http://sinny.in/node/25 ), но получаю следующую ошибку: [ 113]

vijay13@ubuntu:~/plasma-mediacenter/build$ sudo apt-get install nepomuk-core-devReading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package nepomuk-core-dev

and following error while building :
-- Found KDE4Workspace: /usr/lib/cmake/KDE4Workspace/KDE4WorkspaceConfig.cmake 
CMake Error at CMakeLists.txt:7 (find_package):
  Could not find module FindNepomukCore.cmake or a configuration file for
  package NepomukCore.

  Adjust CMAKE_MODULE_PATH to find FindNepomukCore.cmake or set
  NepomukCore_DIR to the directory containing a CMake configuration file for
  NepomukCore.  The file will have one of the following names:

    NepomukCoreConfig.cmake
    nepomukcore-config.cmake

-- Found Soprano: /usr/include  (found version "2.7.5", required is "1.99")
-- Found taglib: -L/usr/lib/x86_64-linux-gnu -ltag
-- Taglib found: -L/usr/lib/x86_64-linux-gnu -ltag
-- Found taglib: -L/usr/lib/x86_64-linux-gnu -ltag
-- Taglib found: -L/usr/lib/x86_64-linux-gnu -ltag
*** QtMultimediaKit (included in Qt-Mobility) is required at runtime to play multimedia.
*** You can download it from http://get.qt.nokia.com/qt/add-ons/qt-mobility-opensource-src-1.2.0.zip .
-- Configuring incomplete, errors occurred!