弹性搜索错误:自定义分析器[custom_analyzer]在名称[my_tokenizer]下找不到标记器

我想和我的 custom_analyzer &安培 tokenizer 但我犯了一些错误。

请在下面找到映射字段时从Kibana获取的错误

Custom Analyzer [custom_analyzer] failed to find tokenizer under name [my_tokenizer]

请查找我的地图详细信息。

PUT attach_local
    {
        "settings": {
        "analysis": {
          "analyzer": {
            "custom_analyzer": {
              "type": "custom",
              "tokenizer": "my_tokenizer",
              "char_filter": [
                "html_strip"
              ],
              "filter": [
                "lowercase",
                "asciifolding"
              ]
            }
           }
          }
        },
        "tokenizer": {
        "my_tokenizer": {
          "type": "ngram",
          "min_gram": 3,    
          "max_gram": 3,
          "token_chars": [
            "letter",
            "digit"
          ]
        }
      },

      "mappings" : {
        "doc" : {
          "properties" : {
            "attachment" : {
              "properties" : {
                "content" : {
                  "type" : "text",
                  "analyzer": "custom_analyzer"
                },
                "content_length" : {
                  "type" : "long"
                },
                "content_type" : {
                  "type" : "text"
                },
                "language" : {
                  "type" : "text"
                }
              }
            },
            "resume" : {
              "type" : "text"
            }
          }
        }
      }
    }