a.rb

fireball:deploy [master]$ vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Importing base box 'precise64'...
==> default: Matching MAC address for NAT networking...
==> default: Setting the name of the VM: es-dev
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
    default: Adapter 1: nat
    default: Adapter 2: hostonly
==> default: Forwarding ports...
    default: 9200 => 9200 (adapter 1)
    default: 80 => 8000 (adapter 1)
    default: 22 => 2222 (adapter 1)
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
    default: SSH address: 127.0.0.1:2222
    default: SSH username: vagrant
    default: SSH auth method: private key
    default: Error: Connection timeout. Retrying...
==> default: Machine booted and ready!
==> default: Checking for guest additions in VM...
    default: The guest additions on this VM do not match the installed version of
    default: VirtualBox! In most cases this is fine, but in rare cases it can
    default: prevent things such as shared folders from working properly. If you see
    default: shared folder errors, please make sure the guest additions within the
    default: virtual machine match the version of VirtualBox you have installed on
    default: your host and reload your VM.
    default:
    default: Guest Additions Version: 4.2.0
    default: VirtualBox Version: 4.3
==> default: Configuring and enabling network interfaces...
==> default: Mounting shared folders...
    default: /vagrant => /Users/krames/Projects/developer.rackspace.com/deploy
==> default: Running provisioner: ansible...
ERROR: provided hosts list is empty
Ansible failed to complete successfully. Any error output should be
visible above. Please fix these errors and try again.