Issue creating instances on GCE

I am testing the creation of instances on GCE but cannot get anything to work. This is a brand new install of Ansible. Details of the playbook and error are below.

Thanks in advance for the help.

$ ansible-playbook test.yml -vv
———————ERROR————————
PLAY [deploy GCE instances] ***************************************************

TASK: [launch instances] ******************************************************
REMOTE_MODULE gce network=gce-it-corp-network project_id=wepay-it-01 machine_type=g1-small pem_file=/tmp/downloads/pkey.pem image=centos-6 service_account_email= zone=us-central1-b name=localhost
failed: [localhost] => {“changed”: false, “failed”: true}
msg: Unexpected response: {}

FATAL: all hosts have already failed – aborting

PLAY RECAP ********************************************************************
to retry, use: --limit @/home/dean/test.retry

localhost : ok=0 changed=0 unreachable=0 failed=1

———————PLAYBOOK————————