Preparing to unpack .../libnss3-nssdb_2%3a3.26.2-0ubuntu0.16.04.2_all.deb ...
Unpacking libnss3-nssdb (2:3.26.2-0ubuntu0.16.04.2) over (2:3.23-0ubuntu0.16.04.1) ...
Preparing to unpack .../libnss3_2%3a3.26.2-0ubuntu0.16.04.2_amd64.deb ...
Unpacking libnss3:amd64 (2:3.26.2-0ubuntu0.16.04.2) over (2:3.23-0ubuntu0.16.04.1) ...
Setting up cubemap (1.2.1-1) ...
Job for cubemap.service failed because the control process exited with error code. See "systemctl status cubemap.service" and "journalctl -xe" for details.
invoke-rc.d: initscript cubemap, action "start" failed.
dpkg: error processing package cubemap (--configure):
 subprocess installed post-installation script returned error exit status 1