Error: ConfigFilesNotFoundError: Failed to find some config files: policy.json

When I pulled latest code & tried installing magnum I got "ConfigFilesNotFoundError".

Here is the logs -

digambar_patil@PTD22999:~/devstack$ magnum baymodel-create --name k8sbaymodel --image-id fedora-21-atomic-3 --keypair-id testkey --external-network-id ${NIC_ID} --dns-nameserver 8.8.8.8 --flavor-id m1.small --docker-volume-size 5 --coe kubernetes
ERROR: Internal Server Error (HTTP 500)

logs I found at magnum-api -

  File "/home/digambar_patil/magnum/magnum/common/policy.py", line 116, in handle
    enforce(pecan.request.context, action, None)
  File "/home/digambar_patil/magnum/magnum/common/policy.py", line 92, in enforce
    do_raise=do_raise, exc=exc, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/oslo_policy/policy.py", line 483, in enforce
    self.load_rules()
  File "/usr/local/lib/python2.7/dist-packages/oslo_policy/policy.py", line 388, in load_rules
    self.policy_path = self._get_policy_path(self.policy_file)
  File "/usr/local/lib/python2.7/dist-packages/oslo_policy/policy.py", line 456, in _get_policy_path
    raise cfg.ConfigFilesNotFoundError((path,))
ConfigFilesNotFoundError: Failed to find some config files: policy.json
10.77.162.75 - - [22/Jul/2015 14:31:04] "POST /v1/baymodels HTTP/1.1" 500 59