Error json

dataset.json

{
  "dataset": {
    "meta": {
      "host": "opendataqa.arcgis.com/datasets",
      "host_hash": "3ddfcc160a6bb0ef4c86fab746a14a0f",
      "server": "opendataqa.arcgis.com/datasets/8d39e6ff51704706babefee5c2bf440f_0/featureserver/0services",
      "server_hash": "bffbe6f5cb175c32539ad5b6f67faa96",
      "service": "opendataqa.arcgis.com/datasets/8d39e6ff51704706babefee5c2bf440f_0/FeatureServer",
      "service_hash": "1e44a83065cf60d842f917f19ee47b53",
      "layer": "opendataqa.arcgis.com/datasets/8d39e6ff51704706babefee5c2bf440f_0/FeatureServer/0",
      "layer_hash": "d6893553dd06bbd7c2485243ff43f368",
      "status": "finished"
    },
    "messages": [
      {
        "log": "Dataset does not have a license specified.",
        "i18n": {
          "key": "ITEM_ERROR_MISSING_LICENSE",
          "data": {
            "url": "https://qaext.arcgis.com/home/item.html?id=8d39e6ff51704706babefee5c2bf440f",
            "target": "_blank"
          }
        },
        "type": "warn"
      },
      {
        "type": "info",
        "log": "This layerd does not have a geometry column, and thus has been indexed as a table.",
        "i18n": {
          "key": "messages.processors.layer.no_geometry"
        }
      },
      {
        "log": "In order to accurately show when your data is updated, editor tracking must be enabled. See here for documentation.",
        "i18n": {
          "key": "messages.inspectors.last_edited_date.not_enabled"
        },
        "type": "info"
      },
      {
        "type": "info",
        "log": "Statistics are not generated for fields named OBJECTID.",
        "i18n": {
          "key": "messages.stats.not_generated.black_list_name",
          "data": {
            "field_name": "OBJECTID"
          }
        }
      }
    ],
    "id": "8d39e6ff51704706babefee5c2bf440f_0",
    "advanced_query_capabilities": {
      "supportsPagination": true,
      "supportsQueryWithDistance": true,
      "supportsReturningQueryExtent": true,
      "supportsStatistics": true,
      "supportsOrderBy": true,
      "supportsDistinct": true
    },
    "created_at": "2015-06-22T16:45:18.000Z",
    "description": "",
    "extent": {
      "coordinates": []
    },
    "fields": [
      {
        "name": "row_num",
        "type": "esriFieldTypeInteger",
        "alias": "row_num",
        "updated_at": "2015-07-09T19:14:28.090Z",
        "statistics": {
          "duration": 92.71870900003705,
          "sum": 12502500,
          "avg": 2500.5,
          "count": 5000,
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          "max": 5000,
          "stddev": 1443.3756441065507,
          "var": 2083333.25
        }
      },
      {
        "name": "latitude",
        "type": "esriFieldTypeInteger",
        "alias": "latitude",
        "updated_at": "2015-07-09T19:14:28.169Z",
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          "sum": 200500.0000000001,
          "avg": 40.100000000000016,
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          "var": 8.329999999999947
        }
      },
      {
        "name": "longitude",
        "type": "esriFieldTypeInteger",
        "alias": "longitude",
        "updated_at": "2015-07-09T19:14:28.261Z",
        "statistics": {
          "duration": 91.91321400005836,
          "sum": -550500,
          "avg": -110.1,
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          "min": -120,
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          "stddev": 5.773214009544422,
          "var": 33.32999999999999
        }
      },
      {
        "name": "val",
        "type": "esriFieldTypeInteger",
        "alias": "val",
        "updated_at": "2015-07-09T19:14:28.343Z",
        "statistics": {
          "duration": 82.16299400001299,
          "sum": 12500378,
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          "stddev": 1438.4274755039419,
          "var": 2069073.602284643
        }
      },
      {
        "name": "OBJECTID",
        "type": "esriFieldTypeOID",
        "alias": "OBJECTID",
        "statistics": {
          "duration": 0
        },
        "updated_at": "2015-07-09T19:14:28.343Z"
      }
    ],
    "display_field": "id",
    "groups": [
      "0c35fb6e592e4421a16ec324f1c58fa0",
      "e15ae889088241ba952ec37afed33193"
    ],
    "item_name": "QA_data_simple_point_5000_service_blue_box (7)",
    "item_type": "Feature Layer",
    "license": "",
    "name": "QA_data_simple_point_5000_service_blue_box_28729",
    "object_id_field": "OBJECTID",
    "owner": "dcadminqa",
    "record_count": 5000,
    "supported_extensions": "",
    "supports_advanced_queries": true,
    "tags": [
      "geosmash-csv"
    ],
    "thumbnail_url": "https://qaext.arcgis.com/sharing/rest/content/items/8d39e6ff51704706babefee5c2bf440f/info/thumbnail/ago_downloaded.png",
    "title": "QA_data_simple_point_5000_service_blue_box (7)",
    "type": "ItemLayer",
    "public": true,
    "comments_enabled": false,
    "updated_at": "2015-06-22T16:45:35.000Z",
    "harvested_at": "2015-07-09T19:14:28.436Z",
    "use_standardized_queries": false,
    "landing_page": "https://qaext.arcgis.com/home/item.html?id=8d39e6ff51704706babefee5c2bf440f",
    "url": "http://opendataqa.arcgis.com/datasets/8d39e6ff51704706babefee5c2bf440f_0/FeatureServer/0",
    "geometry_type": "esriGeometryPoint",
    "current_version": 10.21,
    "max_record_count": 1000,
    "service_spatial_reference": {
      "wkid": 4326,
      "latestWkid": 4326
    },
    "harvester_version": "0.0.13"
  }
}