在虚拟机安装elasticsearch并浏览器输入http://虚拟机ip:9200连接成功后，postman无法新增索引

{
"error": {
"root_cause": [
{
"type": "illegal_argument_exception",
"reason": "unknown setting [index.content] please check that any required plugins are installed, or check the breaking changes documentation for removed settings"
}
],
"type": "illegal_argument_exception",
"reason": "unknown setting [index.content] please check that any required plugins are installed, or check the breaking changes documentation for removed settings"
},
"status": 400
}

你这很明显语法有错，你把接口参数发出来看下

PUT indexTest001