Converting template to work in elasticsearch 6.x

[Bob_Benson (tai chi)]

I am trying to have this json template uploaded to elasticsearch 6 but get the following error, Please what do I need to do to have this working on elasticsearch 6. New to ELK world, Thanks

 "root_cause" : [
   {
     "type" : "mapper_parsing_exception",
     "reason" : "Failed to parse mapping [_default_]: No field type matched on [float], possible values are [object, string, long, double, boolean, date, binary]"
   }
 ],    "type" : "mapper_parsing_exception",
 "reason" : "Failed to parse mapping [_default_]: No field type matched on [float], possible values are [object, string, long, double, boolean, date, binary]",
 "caused_by" : {
   "type" : "illegal_argument_exception",
   "reason" : "No field type matched on [float], possible values are [object, string, long, double, boolean, date, binary]"
 }
},
"status" : 400
}

Here is the template code

  "template" : "logstash-*",
  "settings" : {
    "index.refresh_interval" : "5s"
  },
  "mappings" : {
    "_default_" : {
      "_all" : {"enabled" : true, "omit_norms" : true},
      "dynamic_templates" : [ {
        "message_field" : {
          "match" : "message",
          "match_mapping_type" : "string",
          "mapping" : {
            "type" : "string", "index" : "analyzed", "omit_norms" : true,
            "fielddata" : { "format" : "enabled" }
          }
        }
      }, {
        "string_fields" : {
          "match" : "*",
          "match_mapping_type" : "string",
          "mapping" : {
            "type" : "string", "index" : "analyzed", "omit_norms" : true,
            "fielddata" : { "format" : "enabled" },
            "fields" : {
              "raw" : {"type": "string", "index" : "not_analyzed", "doc_values" : true, "ignore_above" : 256}
            }
          }
        }
      }, {
        "float_fields" : {
          "match" : "*",
          "match_mapping_type" : "float",
          "mapping" : { "type" : "float", "doc_values" : true }
        }
      }, {
        "double_fields" : {
          "match" : "*",
          "match_mapping_type" : "double",
          "mapping" : { "type" : "double", "doc_values" : true }
        }
      }, {
        "byte_fields" : {
          "match" : "*",
          "match_mapping_type" : "byte",
          "mapping" : { "type" : "byte", "doc_values" : true }
        }
      }, {
        "short_fields" : {
          "match" : "*",
          "match_mapping_type" : "short",
          "mapping" : { "type" : "short", "doc_values" : true }
        }
      }, {
        "integer_fields" : {
          "match" : "*",
          "match_mapping_type" : "integer",
          "mapping" : { "type" : "integer", "doc_values" : true }
        }
      }, {
        "long_fields" : {
          "match" : "*",
          "match_mapping_type" : "long",
          "mapping" : { "type" : "long", "doc_values" : true }
        }
      }, {
        "date_fields" : {
          "match" : "*",
          "match_mapping_type" : "date",
          "mapping" : { "type" : "date", "doc_values" : true }
        }
      }, {
        "geo_point_fields" : {
          "match" : "*",
          "match_mapping_type" : "geo_point",
          "mapping" : { "type" : "geo_point", "doc_values" : true }
        }
      } ],
      "properties" : {
        "@timestamp": { "type": "date", "doc_values" : true },
        "@version": { "type": "string", "index": "not_analyzed", "doc_values" : true },
        "geoip"  : {
          "type" : "object",
          "dynamic": true,
          "properties" : {
            "ip": { "type": "ip", "doc_values" : true },
            "location" : { "type" : "geo_point", "doc_values" : true },
            "latitude" : { "type" : "float", "doc_values" : true },
            "longitude" : { "type" : "float", "doc_values" : true }
          }
        }
      }
    }
  }
}