博托错误启动ec2实例

我使用ansible创建一个ec2 isntance。 PlayBook的运行过程中，我得到的错误是：博托错误启动ec2实例

TASK [create a single ec2 instance] ******************************************** 
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: NameError: name 'botocore' is not defined 
fatal: [localhost]: FAILED! => {"changed": false, "failed": true, "module_stderr": "Traceback (most recent call last):\n File \"/tmp/ansible_eVkiMV/ansible_module_ec2.py\", line 1554, in <module>\n from ansible.module_utils.ec2 import *\n File \"/tmp/ansible_eVkiMV/ansible_modlib.zip/ansible/module_utils/ec2.py\", line 61, in <module>\n File \"/tmp/ansible_eVkiMV/ansible_modlib.zip/ansible/module_utils/ec2.py\", line 62, in AWSRetry\nNameError: name 'botocore' is not defined\n", "module_stdout": "", "msg": "MODULE FAILURE"} 
     to retry, use: --limit @apache_aws.retry 

PLAY RECAP ********************************************************************* 
localhost     : ok=0 changed=0 unreachable=0 failed=1

它说，botocore没有定义，但我使用PIP安装博托安装博托。任何人都可以请弄清楚是什么问题？

来源

2016-09-14 robert williams