lunching t2.micro instance is failing

[rrohana]

Hi
Trying to lunch t2.micro but failing with:

Response><Errors><Error><Code>VPCResourceNotSpecified</Code><Message>The specified instance type can only be used in a VPC. A subnet ID or network interface ID is required to carry out the request.</Message></Error></Errors><RequestID>680064e3-9618-4a40-9b90-2d80487bbd74</RequestID></Response>

config file:

EC2_LAUNCH_CONFIGS = {
    't2.micro': {
        'description': 'Ubuntu trusty64.',

        # Ami ID (E.g.: ami-fb665f8f)
        'ami': 'ami-<id>',

        # One of: m1.small, m1.large, m1.xlarge, c1.medium, c1.xlarge, m2.xlarge, m2.2xlarge, m2.4xlarge, cc1.4xlarge, t1.micro
        'instance_type': 't2.micro',

        # List of security groups
        'security_groups': ['default'],
        'subnet' : 'subnet-<id>',

        # Use the ``list_regions`` task to see all available regions
        'region': DEFAULT_REGION,

        # The name of the key pair to use for instances (See http://console.aws.amazon.com -> EC2 -> Key Pairs)
        'key_name': 'raidkey',

        # The availability zone in which to launch the instances. This is
        # automatically prefixed by ``region``.
        'availability_zone': 'a',

        #Subnet id
        # Tags to add to the instances. You can use the ``ec2_*_tag`` tasks or
        # the management interface to manage tags. Special tags:
        #   - Name: Should not be in this dict. It is specified when launching
        #           an instance (needs to be unique for each instance).
        #   - awsfab-ssh-user: The ``awsfab`` tasks use this user to log into your instance.
        'tags': {
             'awsfab-ssh-user': 'ubuntu',
        },
        'user_data': user_data_example
    }
}