Do you want to continue [Y/n]? y
(Reading database ... 70522 files and directories currently installed.)
Preparing to replace kdebase-data 4:3.5.5a.dfsg.1-2 (using .../kdebase-data_4%3a3.5.5a.dfsg.1-2_all.deb) ...
rmdir: /etc/xdg/menus/kde-applications-merged: Not a directory
dpkg: error processing /var/cache/apt/archives/kdebase-data_4%3a3.5.5a.dfsg.1-2_all.deb (--unpack):
subprocess pre-installation script returned error exit status 1
Errors were encountered while processing:
/var/cache/apt/archives/kdebase-data_4%3a3.5.5a.dfsg.1-2_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)