uninitialized constant Mongo

[vachanda]

When i use the lwrp to create the user as mentioned in the readme, the run fails with the above error. The machine I'm using runs on Ubuntu 14.04Lts and chef version is 11.10.
My test.rb recipe looks like this:

hipsnip_mongodb_user "blah" do
  password "some_password"
  username "username"
  roles [ "dbOwner","clusterMonitor" ]
  database "test"
  port 9000
end

The error message is :

Error executing action `create` on resource 'hipsnip-mongodb_user[blah]
NameError
uninitialized constant Mongo