Setting up wireshark-common (1.12.1+g01b65bf-4+deb8u2build0.15.04.1) ...
Executing "addgroup --quiet --system wireshark" failed.
Most probably the wireshark group exists, but is not a system group.
Please delete the existing group or re-create it as a system group and try configuring wireshark-common again.
dpkg: error processing package wireshark-common (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of wireshark:
 wireshark depends on wireshark-common (= 1.12.1+g01b65bf-4+deb8u2build0.15.04.1); however:
  Package wireshark-common is not configured yet.

dpkg: error processing package wireshark (--configure):
 dependency problems - leaving unconfigured