[chef] cant make chef-provisioning-ssh example to work !

[Medya < >]

I try to provision an instance which already exist, using chef-provisioning-ssh's basic example

but I get this error :

[2015-04-08T16:30:01-05:00] INFO: HTTP Request Returned 404 Not Found : Object not found: http://localhost:8890/nodes/Developing-Weblogic-Resource

    ================================================================================

    Error executing action `ready` on resource 'machine[Developing-Weblogic-Resource]'

    ================================================================================

    RuntimeError

    ------------

    Machine Options for Developing-Weblogic-Resource are invalid cannot create machine.

      :transport_options => :host or :ip_address required.

      :transport_options => :username required.

      :transport_options => :host not allowed.

      :transport_options => :username not allowed.

      :transport_options => :keys not allowed.

here is my full recipe:

require 'chef/provisioning/ssh_driver' # for provisioning ssh

with_driver 'ssh'

machine "Developing-Weblogic-Resource" do

  tag "usage:keep"

  recipe "${project.artifactId}::dummy"

  machine_options  :transport_options => {

    'host' => '10.16.4.126',

    'username' => 'root',

    'keys' => ['C:\Users\medya\chef\keys\Intf_proj_keypair']

  }

  ohai_hints ohai_hints

  action [:ready, :setup, :converge]

  converge true

end