Elasticsearch 6 启动成功后 创建类型报错 analyzer [ik_smart] not found for field [description] 的原因

vagrant@homestead:~/code/laravel-shop$ curl -H'Content-Type: application/json' -XPUT http://localhost:9200/test_index/_mapping/_doc?pretty -d'{
>   "properties": {
> "title": { "analyzer": "ik_smart","type": "text" },
>     "description": { "analyzer": "ik_smart","type": "text" },
>     "price": { "type": "scaled_float", "scaling_factor": 100 }
>   }
> }'
{
  "error" : {
    "root_cause" : [
      {
        "type" : "mapper_parsing_exception",
        "reason" : "analyzer [ik_smart] not found for field [description]"
      }
    ],
    "type" : "mapper_parsing_exception",
    "reason" : "analyzer [ik_smart] not found for field [description]"
  },
  "status" : 400
}