我正在使用邮递员与elasticsearch服务器进行通信，当我尝试与我的elasticsearch服务器连接时，我在邮递员中收到错误消息。我哪里出问题了？这是我的代码。

{
  "mappings": {
    "post": {
      "properties": {
        "city": {
          "type": "text"
        },
        "contact_email": {
          "type": "text"
        },
        "country": {
          "type": "text"
        },
        "description": {
          "type": "text"
        },
        "image": {
          "type": "text"
        },
        "post_id": {
          "type": "text"
        },
        "state_province": {
          "type": "text"
        },
        "title": {
          "type": "text"
        }
      }
    }
  }
}

我已尝试与服务器通信，但我一直收到此错误

        "root_cause": [
            {
                "type": "mapper_parsing_exception",
                "reason": "Root mapping definition has unsupported parameters:  [post : {properties={country={type=text}, image={type=text}, post_id={type=text}, city={type=text}, description={type=text}, state_province={type=text}, title={type=text}, contact_email={type=text}}}]"
            }