Open Stack

Operating system:

     Distributor ID:	Ubuntu
     Description:	Ubuntu 12.04.4 LTS
     Release:	12.04
     Codename:	precise

Heat version:

     heat-api                            2013.2.2-0ubuntu1~cloud0
     at-api-cfn                          2013.2.2-0ubuntu1~cloud0
     heat-api-cloudwatch                 2013.2.2-0ubuntu1~cloud0
     heat-common                         2013.2.2-0ubuntu1~cloud0
     heat-engine                         2013.2.2-0ubuntu1~cloud0
     python-heat                         2013.2.2-0ubuntu1~cloud0
     python-heatclient                   0.2.4-0ubuntu1~cloud0

Content of template I used: https://gist.github.com/nvhbk16k53/10014468

When I run command to create stack, I got an Error message:

     ERROR: Unknown resource Type : OS::Heat::ScalingPolicy

has anyone suffer this error? How to fix it?
I will highly appriciate for any help that you can provide.
Thanks.