Ansible fails to start service

TASK: [beaver | Set beaver to run on start] ***********************************
failed: [52.0.194.86] => {"failed": true}
msg: beaver: unrecognized service

- name: Set beaver to run on start
  sudo: yes
  service: name=beaver state=started enabled=yes

description "ship logs to logstash via beaver"

start on runlevel [2345]
stop on runlevel [!2345]
respawn

env BEAVER_MODE=connect

post-start script
    PID=`status beaver | egrep -oi '([0-9]+)$' | head -n1`
    echo $PID > /var/run/beaver.pid
end script

post-stop script
    rm -f /var/run/beaver.pid
end script

exec /usr/local/bin/beaver -c /etc/beaver.conf -l /var/log/beaver -t sqs