The following packages will be upgraded:
  cgmanager
1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
Need to get 0 B/55.1 kB of archives.
After this operation, 7,168 B of additional disk space will be used.
Do you want to continue? [Y/n]
(Reading database ... 183104 files and directories currently installed.)
Preparing to unpack .../cgmanager_0.27-0ubuntu7_amd64.deb ...
Failed to issue method call: Unit cgproxy.service not loaded.
invoke-rc.d: initscript cgproxy, action "stop" failed.
dpkg: warning: subprocess old pre-removal script returned error exit status 5
dpkg: trying script from the new package instead ...
Failed to issue method call: Unit cgproxy.service not loaded.
invoke-rc.d: initscript cgproxy, action "stop" failed.
dpkg: error processing archive /var/cache/apt/archives/cgmanager_0.27-0ubuntu7_amd64.deb (--unpack):
 subprocess new pre-removal script returned error exit status 5
Failed to issue method call: Unit cgmanager.service failed to load: No such file or directory. See system logs and 'systemctl status cgmanager.service' for details.
invoke-rc.d: initscript cgmanager, action "start" failed.
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 6
Errors were encountered while processing:
 /var/cache/apt/archives/cgmanager_0.27-0ubuntu7_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)