I am having problems provisioning to aws.

Bash log

$ vagrant box add ubuntu http://cloud-images.ubuntu.com/vagrant/precise/current/precise-server-cloudimg-amd64-vagrant-disk1.box
Downloading or copying the box...
Extracting box...te: 2942k/s, Estimated time remaining: 0:00:01)
The box you're attempting to add already exists:

Name: ubuntu
Provider: virtualbox

$ vagrant box list
ubuntu (virtualbox)

$ vagrant box up --provider=aws
Bringing machine 'default' up with 'aws' provider...
[default] Box 'ubuntu' was not found. Fetching box from specified URL for
the provider 'aws'. Note that if the URL does not have
a box for this provider, you should interrupt Vagrant now and add
the box yourself. Otherwise Vagrant will attempt to download the
full box prior to discovering this error.

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.require_plugin "vagrant-aws"

BOX_NAME = ENV['BOX_NAME'] || "ubuntu"
BOX_URI = ENV['BOX_URI'] || "http://cloud-images.ubuntu.com/vagrant/precise/current/precise-server-cloudimg-amd64-vagrant-disk1.box"
AWS_REGION = ENV['AWS_REGION'] || "us-east-1"
AWS_AMI    = ENV['AWS_AMI']    || "ami-d0f89fb9"
FORWARD_DOCKER_PORTS = ENV['FORWARD_DOCKER_PORTS']

Vagrant.configure("2") do |config|
  # Setup virtual machine box. This VM configuration code is always executed.
  config.vm.box = BOX_NAME
  config.vm.box_url = BOX_URI

  # Provision docker and new kernel if deployment was not done.
  # It is assumed Vagrant can successfully launch the provider instance.
  if Dir.glob("#{File.dirname(__FILE__)}/.vagrant/machines/default/*/id").empty?
    # Add lxc-docker package
    pkg_cmd = "wget -q -O - https://get.docker.io/gpg | apt-key add -;" \
      "echo deb http://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list;" \
      "apt-get update -qq; apt-get install -q -y --force-yes lxc-docker; "
    # Add Ubuntu raring backported kernel
    pkg_cmd << "apt-get update -qq; apt-get install -q -y linux-image-generic-lts-raring; "
    # Add guest additions if local vbox VM. As virtualbox is the default provider,
    # it is assumed it won't be explicitly stated.
    if ENV["VAGRANT_DEFAULT_PROVIDER"].nil? && ARGV.none? { |arg| arg.downcase.start_with?("--provider") }
      pkg_cmd << "apt-get install -q -y linux-headers-generic-lts-raring dkms; " \
        "echo 'Downloading VBox Guest Additions...'; " \
        "wget -q http://dlc.sun.com.edgesuite.net/virtualbox/4.2.12/VBoxGuestAdditions_4.2.12.iso; "
      # Prepare the VM to add guest additions after reboot
      pkg_cmd << "echo -e 'mount -o loop,ro /home/vagrant/VBoxGuestAdditions_4.2.12.iso /mnt\n" \
        "echo yes | /mnt/VBoxLinuxAdditions.run\numount /mnt\n" \
          "rm /root/guest_additions.sh; ' > /root/guest_additions.sh; " \
        "chmod 700 /root/guest_additions.sh; " \
        "sed -i -E 's#^exit 0#[ -x /root/guest_additions.sh ] \\&\\& /root/guest_additions.sh#' /etc/rc.local; " \
        "echo 'Installation of VBox Guest Additions is proceeding in the background.'; " \
        "echo '\"vagrant reload\" can be used in about 2 minutes to activate the new guest additions.'; "
    end
    # Activate new kernel
    pkg_cmd << "shutdown -r +1; "
    config.vm.provision :shell, :inline => pkg_cmd
  end

  config.vm.provider :aws do |aws, override|
    aws.access_key_id = ENV["AWS_ACCESS_KEY_ID"]
    aws.secret_access_key = ENV["AWS_SECRET_ACCESS_KEY"]
    aws.keypair_name = ENV["AWS_KEYPAIR_NAME"]
    override.ssh.private_key_path = ENV["AWS_SSH_PRIVKEY"]
    override.ssh.username = "ubuntu"
    aws.region = AWS_REGION
    aws.ami    = AWS_AMI
    aws.instance_type = "t1.micro"
  end

  config.vm.provider :virtualbox do |vb, override|
    config.vm.network :forwarded_port, host: 3001, guest: 80
  end
end