vagrant rackspace error: "No host IP was given to the Vagrant core NFS helper. This is an internal error that should be reported as a bug."

debuglogs

EBUG ssh: == Net-SSH connection debug-level log END ==
 INFO ssh: SSH is ready!
 INFO machine: Calling action: read_ssh_info on provider RackSpace Cloud
 INFO runner: Preparing hooks for middleware sequence...
 INFO runner: 3 hooks defined.
 INFO runner: Running action: #<Vagrant::Action::Builder:0x00000101a59fe0>
 INFO warden: Calling IN action: #<PEBuild::Action::PEBuildDir:0x00000101a70740>
 INFO warden: Calling IN action: #<AutoNetwork::Action::Request:0x00000101a706a0>
 INFO warden: Calling IN action: #<Vagrant::Action::Builtin::ConfigValidate:0x00000101a70448>
 INFO warden: Calling IN action: #<VagrantPlugins::Rackspace::Action::ConnectRackspace:0x00000101a703a8>
 INFO connect_rackspace: Connecting to Rackspace region...
 INFO warden: Calling IN action: #<VagrantPlugins::Rackspace::Action::ReadSSHInfo:0x00000101baaac0>
 INFO warden: Calling OUT action: #<VagrantPlugins::Rackspace::Action::ReadSSHInfo:0x00000101baaac0>
 INFO warden: Calling OUT action: #<VagrantPlugins::Rackspace::Action::ConnectRackspace:0x00000101a703a8>
 INFO warden: Calling OUT action: #<Vagrant::Action::Builtin::ConfigValidate:0x00000101a70448>
 INFO warden: Calling OUT action: #<AutoNetwork::Action::Request:0x00000101a706a0>
 INFO warden: Calling OUT action: #<PEBuild::Action::PEBuildDir:0x00000101a70740>
 INFO interface: info: The server is ready!
 INFO interface: info: ==> suite_brettswift_com: The server is ready!
==> suite_brettswift_com: The server is ready!
 INFO warden: Calling OUT action: #<VagrantPlugins::Rackspace::Action::CreateServer:0x00000101d03a70>
 INFO synced_folders: Invoking synced folder enable: nfs
ERROR warden: Error occurred: No host IP was given to the Vagrant core NFS helper. This is
an internal error that should be reported as a bug.
 INFO warden: Beginning recovery process...
 INFO warden: Recovery complete.
 INFO warden: Beginning recovery process...
 INFO warden: Recovery complete.
 INFO warden: Beginning recovery process...
 INFO warden: Recovery complete.
ERROR warden: Error occurred: No host IP was given to the Vagrant core NFS helper. This is
an internal error that should be reported as a bug.
 INFO warden: Beginning recovery process...
 INFO warden: Recovery complete.
ERROR warden: Error occurred: No host IP was given to the Vagrant core NFS helper. This is
an internal error that should be reported as a bug.
 INFO warden: Beginning recovery process...
 INFO warden: Calling recover: #<Vagrant::Action::Builtin::Call:0x00000101bb9228>
 INFO warden: Beginning recovery process...
 INFO warden: Recovery complete.
 INFO warden: Recovery complete.
 INFO warden: Beginning recovery process...
 INFO warden: Recovery complete.
 INFO warden: Beginning recovery process...
 INFO warden: Recovery complete.
 INFO warden: Beginning recovery process...
 INFO warden: Recovery complete.
 INFO environment: Running hook: environment_unload
 INFO runner: Preparing hooks for middleware sequence...
 INFO runner: 3 hooks defined.
 INFO runner: Running action: #<Vagrant::Action::Builder:0x00000101e985e8>
 INFO warden: Calling IN action: #<PEBuild::Action::PEBuildDir:0x00000101ea9d98>
 INFO warden: Calling OUT action: #<PEBuild::Action::PEBuildDir:0x00000101ea9d98>
ERROR vagrant: Vagrant experienced an error! Details:
ERROR vagrant: #<Vagrant::Errors::NFSNoHostIP: No host IP was given to the Vagrant core NFS helper. This is
an internal error that should be reported as a bug.>
ERROR vagrant: No host IP was given to the Vagrant core NFS helper. This is
an internal error that should be reported as a bug.
ERROR vagrant: /Applications/Vagrant/embedded/gems/gems/vagrant-1.5.3/plugins/synced_folders/nfs/synced_folder.rb:42:in `enable'

Vagrantfile

Vagrant.configure("2") do |config|


  config.vm.define :suite_brettswift_com do |nodeserver|
 
    config.vm.provider :rackspace do |rs, override|

      override.vm.box               = "rackspace"
      override.vm.box_url           = "https://github.com/mitchellh/vagrant-rackspace/raw/master/dummy.box"
      rs.username                   = "#{ENV['RACKSPACE_USERNAME']}"
      rs.api_key                    = "#{ENV['RACKSPACE_API_KEY']}"
      rs.flavor                     = /512MB Standard Instance/  
      rs.image                      = /Ubuntu 12.04/
      rs.rackspace_region           = 'dfw'

      override.ssh.private_key_path = "~/.ssh/id_rsa"
      override.ssh.username         = 'root'
      rs.public_key_path            = "~/.ssh/id_rsa.pub"
    end
  end
end