In the meantime you can get past this with this command: sudo dpkg -i --force-overwrite /var/cache/apt/archives/kde-window-manager_4%3a4.2.0-0ubuntu1~intrepid1~ppa5_amd64.deb ; sudo apt-get install -f
In the meantime you can get past this with this command: apt/archives/ kde-window- manager_ 4%3a4.2. 0-0ubuntu1~ intrepid1~ ppa5_amd64. deb ; sudo apt-get install -f
sudo dpkg -i --force-overwrite /var/cache/