goaccess: 0.9 setup fails: No time format was found on your conf file.

What am I missing? Trying to this working on my nginx logs. :}

core@dc /$ docker run voxxit/goaccess -f greptweet.access.log -c

GoAccess - version 0.9 - Mar 25 2015 14:39:32

Fatal error has occurred
Error occured at: src/parser.c - parse_log - 1650
No time format was found on your conf file.

core@dc /$ docker run voxxit/goaccess -c

GoAccess - version 0.9 - Mar 25 2015 14:39:32

Fatal error has occurred
Error occured at: src/parser.c - parse_log - 1650
No time format was found on your conf file.

core@dc /$ docker run voxxit/goaccess --version
GoAccess - 0.9.
For more details visit: http://goaccess.io
Copyright (C) 2009-2014 GNU GPL'd, by Gerardo Orellana