Puppet users - Mar 2014 - Puppet dashborad ENC script output blank

I have configured puppet and its working fine. recently i have install 
puppet-dashborad and it works fine, it is showing reports, node etc. but 
somehow it is now showing "classes" associated with node.

sudo /usr/bin/env PUPPET_DASHBOARD_URL=http://localhost:3000 
/usr/share/puppet-dashboard/bin/external_node node1.example.com
---
classes: []

parameters: {}

name: node1.example.com


My site.pp is following

cat /etc/puppet/manifests/site.pp
# /etc/puppet/manifests/site.pp

# common puppet class for all nodes
import "nodes/common.pp"

# Import nodes
import "nodes/dev/*"
import "nodes/test/*"
import "nodes/prod/*"


Am i missing something?? 

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