运行 lxd_container 模块的示例时，Ansible 返回任务中未检测到的操作

我使用以下页面https://docs.ansible.com/ansible/lxd_container_module.html提取以下 lxd 示例并将其放入 YAML 文件中：

>>> cat play.yaml

---
# An example for creating a Ubuntu container and install python
- hosts: localhost
  connection: local
  tasks:
    - name: Create a started container
      lxd_container:
        name: mycontainer
        state: started
        source:
          type: image
          mode: pull
          server: https://images.linuxcontainers.org
          protocol: lxd
          alias: ubuntu/xenial/amd64
        profiles: ["default"]
        wait_for_ipv4_addresses: true
        timeout: 600

但是在运行它时，我收到以下错误：

>>> ansible-playbook play.yaml 
ERROR! no action detected in task

The error appears to have been in '/root/play': line 6, column 7, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

  tasks:
    - name: Create a started container
      ^ here

YAML 文件看起来格式正确。我也检查了ansible-doc -l | grep "lxd"但是没有返回结果。

是什么导致任务无法运行？