Preconfiguring packages ...
(Reading database ... 55%dpkg: unrecoverable fatal error, aborting:
 reading files list for package 'libept1.4.12': Is a directory
E: Sub-process /usr/bin/dpkg returned an error code (2)
root@cube:/var/lib/dpkg# apt-cache search libept1.4.12
libept1.4.12 - High-level library for managing Debian package information
root@cube:/var/lib/dpkg#