Many people use the following link to install: https://www.digitalocean.com/community/tutorials/how-to-install-graylog2-and-centralize-logs-on-ubuntu-14-04
If you are using that link, you will likely get the error you are getting, because the version is old (as someone stated earlier). Use these instructions instead: http://www.itzgeek.com/how-tos/linux/ubuntu-how-tos/how-to-install-graylog2-on-ubuntu-14-04.html I never could get Graylog working with the first set of instructions but I've used the second set on two separate servers and got it working about 30 minutes. -- You received this message because you are subscribed to the Google Groups "Graylog Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to graylog2+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/graylog2/c46f90a4-f65b-4742-a149-508fb96a733f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.