I have the same problem when I upgraded from 14.04 to 16.04. The instruction is to run apt-get -f install and I got this error which obviously is very alien for me as a newbie. Any help will be appreciated. Thank you.
The following packages will be upgraded: roundcube roundcube-core 2 upgraded, 0 newly installed, 0 to remove and 18 not upgraded. 2 not fully installed or removed. Need to get 0 B/1,930 kB of archives. After this operation, 5,036 kB of additional disk space will be used. Do you want to continue? [Y/n] y Preconfiguring packages ... (Reading database ... 324894 files and directories currently installed.) Preparing to unpack .../roundcube-core_1.2~beta+dfsg.1-0ubuntu1_all.deb ... dpkg-maintscript-helper: error: directory '/var/lib/roundcube/config' contains files not owned by package roundcube-core:all, cannot switch to symlink dpkg: error processing archive /var/cache/apt/archives/roundcube-core_1.2~beta+dfsg.1-0ubuntu1_all.deb (--unpack): subprocess new pre-installation script returned error exit status 1 Reinstalling /etc/roundcube/db.inc.php that was moved away dbconfig-common: flushing administrative password dpkg: considering deconfiguration of roundcube-core, which would be broken by installation of roundcube ... dpkg: yes, will deconfigure roundcube-core (broken by roundcube) Preparing to unpack .../roundcube_1.2~beta+dfsg.1-0ubuntu1_all.deb ... De-configuring roundcube-core (0.9.5-4) ... dpkg-maintscript-helper: error: directory '/usr/share/doc/roundcube' contains files not owned by package roundcube:all, cannot switch to symlink dpkg: error processing archive /var/cache/apt/archives/roundcube_1.2~beta+dfsg.1-0ubuntu1_all.deb (--unpack): subprocess new pre-installation script returned error exit status 1 dbconfig-common: flushing administrative password Errors were encountered while processing: /var/cache/apt/archives/roundcube-core_1.2~beta+dfsg.1-0ubuntu1_all.deb /var/cache/apt/archives/roundcube_1.2~beta+dfsg.1-0ubuntu1_all.deb E: Sub-process /usr/bin/dpkg returned an error code (1) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1607705 Title: package roundcube-core 1.2~beta+dfsg.1-0ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/roundcube/+bug/1607705/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
