Error: <circle> attribute cx: Expected length, “NaN”

[AdemKurtipek]

Hi all,

Note: I've asked this question here also. But I need urgent help. Any help would be greatly appreciated.

I'm using Arcgis JSAPI 4.3 to develop an application. I'm trying to display some public events on map using a public API provided an events website.

I had XMLHttpRequest response as Json data that includes events latitude and longitude information of many events.

But I'm getting this error in console; MapView.js:379 Error: attribute cx: Expected length, "NaN".

****Error screenshot ****

When I drag map, error count is increasing more and more.

And marker is always displaying at top left corner as seen below.

var latitude = [];
var longitude = [];
eventIO.request.onreadystatechange = function () {
    if (this.readyState === 4) {

      listItems = JSON.parse(this.responseText);
      data = listItems.recs;

      for (var j=0; j < data.length; j++) {
        latitude.push(data[j].venue.lat);
        longitude.push(data[j].venue.lng);
      }
}


  require([
    "esri/Map",
    "esri/PopupTemplate",
    "esri/views/MapView",
    "esri/Graphic",
    "esri/geometry/Point",
    "esri/geometry/Multipoint",
    "esri/geometry/Polyline",
    "esri/geometry/Polygon",
    "esri/symbols/SimpleMarkerSymbol",
    "esri/layers/FeatureLayer",
    "dojo/domReady!"
  ], function(
    Map, PopupTemplate, MapView,
    Graphic, Point, Multipoint, Polyline, Polygon,
    SimpleMarkerSymbol, FeatureLayer
  ) {   

    var map = new Map({
      basemap: "hybrid"
    });

    var view = new MapView({
      center: [30, 40],
      container: "viewDiv",
      map: map,
      zoom: 6
    });

    var myPoints = {"points": [[longitude, latitude]]};
    var multipoint = new Multipoint(myPoints);

    var markerSymbol = new SimpleMarkerSymbol({
      color: [226, 119, 40],
      outline: {
        color: [255, 255, 255],
        width: 2
      }
    });

    var pointGraphic = new Graphic({
      geometry: multipoint,
      symbol: markerSymbol
    });

    view.then(function() {
      view.graphics.add(pointGraphic);
    });

  });‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[AdemKurtipek · Accepted solution]

I solved it by converting strings to numbers in array.