root@bx:~# apt-get update
Hit:1 http://archive.canonical.com/ubuntu xenial InRelease
Ign:2 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:3 http://ftp.cuhk.edu.hk/pub/Linux/ubuntu xenial InRelease
Hit:4 http://ppa.launchpad.net/docky-core/stable/ubuntu xenial InRelease
Hit:5 http://dl.google.com/linux/chrome/deb stable Release
Hit:6 http://ftp.cuhk.edu.hk/pub/Linux/ubuntu xenial-updates InRelease
Hit:8 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu xenial InRelease
Hit:9 http://ftp.cuhk.edu.hk/pub/Linux/ubuntu xenial-backports InRelease
Hit:10 http://ftp.cuhk.edu.hk/pub/Linux/ubuntu xenial-security InRelease
Hit:11 http://ppa.launchpad.net/noobslab/apps/ubuntu xenial InRelease
Hit:12 http://ppa.launchpad.net/wireshark-dev/stable/ubuntu xenial InRelease
Reading package lists... Done
root@bx:~#
root@bx:~#
root@bx:~# apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following additional packages will be installed:
  libpcap0.8:i386
The following packages will be upgraded:
  libpcap0.8:i386
1 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
11 not fully installed or removed.
Need to get 0 B/121 kB of archives.
After this operation, 20.5 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
(Reading database ... 222102 files and directories currently installed.)
Preparing to unpack .../libpcap0.8_1.7.4-2_i386.deb ...
Unpacking libpcap0.8:i386 (1.7.4-2) over (1.4.0-2) ...
dpkg: error processing archive /var/cache/apt/archives/libpcap0.8_1.7.4-2_i386.deb (--unpack):
 trying to overwrite shared '/usr/share/doc/libpcap0.8/CREDITS.gz', which is different from other instances of package libpcap0.8:i386
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Processing triggers for libc-bin (2.23-0ubuntu3) ...
Errors were encountered while processing:
 /var/cache/apt/archives/libpcap0.8_1.7.4-2_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@bx:~#
root@bx:~#
root@bx:~# apt-cache policy libpcap0.8:i386
libpcap0.8:i386:
  Installed: 1.4.0-2
  Candidate: 1.7.4-2
  Version table:
     1.7.4-2 500
        500 http://ftp.cuhk.edu.hk/pub/Linux/ubuntu xenial/main i386 Packages
 *** 1.4.0-2 100
        100 /var/lib/dpkg/status


ALSO I CAN'T INSTALL ANYTHING NEW