Preparing to unpack .../vsftpd_3.0.2-18ubuntu1_amd64.deb ...
Unpacking vsftpd (3.0.2-18ubuntu1) ...
Processing triggers for man-db (2.7.0.2-5) ...
Processing triggers for ureadahead (0.100.0-19) ...
Setting up ntp (1:4.2.6.p5+dfsg-3ubuntu6) ...
dpkg: error processing package ntp (--configure):
 subprocess installed post-installation script returned error exit status 1
Setting up vsftpd (3.0.2-18ubuntu1) ...