Preparing to unpack .../libecap2_0.2.0-1ubuntu5_amd64.deb ...
Unpacking libecap2 (0.2.0-1ubuntu5) ...
Selecting previously unselected package squid-langpack.
Preparing to unpack .../squid-langpack_20140506-1_all.deb ...
Unpacking squid-langpack (20140506-1) ...
Selecting previously unselected package squid3-common.
Preparing to unpack .../squid3-common_3.3.8-1ubuntu14_all.deb ...
Unpacking squid3-common (3.3.8-1ubuntu14) ...
Selecting previously unselected package squid3.
Preparing to unpack .../squid3_3.3.8-1ubuntu14_amd64.deb ...
Unpacking squid3 (3.3.8-1ubuntu14) ...
Selecting previously unselected package squid.
Preparing to unpack .../squid_3.3.8-1ubuntu14_amd64.deb ...
Unpacking squid (3.3.8-1ubuntu14) ...
Processing triggers for ufw (0.34~rc-0ubuntu5) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for systemd (219-7ubuntu3) ...
Processing triggers for man-db (2.7.0.2-5) ...
Setting up libecap2 (0.2.0-1ubuntu5) ...
Setting up squid-langpack (20140506-1) ...
Setting up squid3-common (3.3.8-1ubuntu14) ...
Setting up squid3 (3.3.8-1ubuntu14) ...
/var/lib/dpkg/info/squid3.postinst: 1: /var/lib/dpkg/info/squid3.postinst: cannot open /etc/squid3/squid.conf: No such file
dpkg: error processing package squid3 (--configure):
 subprocess installed post-installation script returned error exit status 2