Installing Hiera on Puppet Master 2.7.14

[Gmoney]

I'm trying to install Hiera on a Red Hat 6 server running puppet
2.7.14

I've installed the following gems on my 2.7.14 RH6 server:

puppet resource package | grep hiera
package { 'hiera':
package { 'hiera-puppet':

But still recieve this error on the client

err: Could not retrieve catalog from remote server: Error 400 on
SERVER: undefined method `empty?' for nil:NilClass at /etc/puppet/
modules/user/manifests/accounts/realize.pp:4 on node

Am I missing some components?

On my puppet 2.6.11 server I have the following package installs, but
can't seem to locate rubygem-hiera or rubygem-hiera-puppet for Red Hat
6, appreciate any help or advice on this issue.

On RH5.6 running puppet-2.6.11:

puppet resource package | grep hiera
package { 'hiera':
package { 'hiera-puppet':
package { 'rubygem-hiera':
package { 'rubygem-hiera-puppet':

[Gmoney]

Apologies to all, I was missing a default .yaml file that specified
the classes for hiera to load, fixed.