HeatAction failed: ERROR: Template not in valid format: The template is not a JSON object or YAML mapping.

[Andy]

When using heat.stacks_create stack_name=<% $.stack_name %> template="Path/Heat Template File" like /root/heatTemplate.hot.yaml to create heat stack, following error is reported:
HeatAction failed: ERROR: Template not in valid format: The template is not a JSON object or YAML mapping.
2016-07-21 22:15:13.478 1748 TRACE mistral.engine.default_executor Traceback (most recent call last):
2016-07-21 22:15:13.478 1748 TRACE mistral.engine.default_executor File "/usr/lib/python2.7/site-packages/mistral/engine/default_executor.py", line 52, in run_action
2016-07-21 22:15:13.478 1748 TRACE mistral.engine.default_executor result = action.run()
2016-07-21 22:15:13.478 1748 TRACE mistral.engine.default_executor File "/usr/lib/python2.7/site-packages/mistral/actions/openstack/actions.py", line 164, in run
2016-07-21 22:15:13.478 1748 TRACE mistral.engine.default_executor % (self.__class__.__name__, e))
2016-07-21 22:15:13.478 1748 TRACE mistral.engine.default_executor ActionException: HeatAction failed: ERROR: Template not in valid format: The template is not a JSON object or YAML mapping.
2016-07-21 22:15:13.478 1748 TRACE mistral.engine.default_executor

Does mistral heat.stacks_create not support file path?
BTW, I have used heat stack-create successlly by the same template file.

[yaoyuan (yaoyuan)]

same to me!