I am trying to install fail2ban on Ubuntu 15.04 with the following command:

sudo apt-get install fail2ban

and i am getting the following error:

Setting up netfilter-persistent (1.0.3) ...
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
A dependency job for netfilter-persistent.service failed. See 'journalctl -xe' for details.
invoke-rc.d: initscript netfilter-persistent, action "start" failed.
dpkg: error processing package netfilter-persistent (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of iptables-persistent:
 iptables-persistent depends on netfilter-persistent (= 1.0.3); however:
  Package netfilter-persistent is not configured yet.

dpkg: error processing package iptables-persistent (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                          Errors were encountered while processing:
 netfilter-persistent
 iptables-persistent
E: Sub-process /usr/bin/dpkg returned an error code (1)

I tried journalctl -xe but no logs.


Is there any fix for this?

I don't know why but i installed Ubuntu 14.04 LTS and the issue disappeared.