Preparing to unpack .../thermald_1.5-2ubuntu4_i386.deb ...
Unpacking thermald (1.5-2ubuntu4) over (1.5-2ubuntu4) ...
Preparing to unpack .../unattended-upgrades_0.90ubuntu0.5_all.deb ...
Unpacking unattended-upgrades (0.90ubuntu0.5) over (0.90ubuntu0.5) ...
Preparing to unpack .../appmenu-qt5_0.3.0+16.04.20170216-0ubuntu1_i386.deb ...
Unpacking appmenu-qt5 (0.3.0+16.04.20170216-0ubuntu1) over (0.3.0+16.04.20170216-0ubuntu1) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for dbus (1.10.6-1ubuntu3.3) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for systemd (229-4ubuntu17) ...
dpkg: error processing package libappindicator3-1 (--configure):
 package libappindicator3-1 is already installed and configured