topic Re: Error when adding a feature layer in ArcGIS JavaScript Maps SDK Questions

Error when adding a feature layer

joepublic — Mon, 13 Oct 2014 19:53:28 GMT

I have a very basic script show below and get the error:

Any ideas as to what I'm doing wrong??

Error {code: 500, message: "Error performing query operation", details: Array[0], log: undefined, httpCode: 500…}

_ssl: undefined
code: 500
details: Array[0]
httpCode: 500
log: undefined
message: "Unable to draw graphic (null): Error performing query operation"
stack: "Error↵ at Error (native)↵ at Object.e.load (http://js.arcgis.com/3.10/init.js:619:426)↵ at http://js.arcgis.com/3.10/init.js:187:69↵ at c (http://js.arcgis.com/3.10/init.js:74:221)↵ at d (http://js.arcgis.com/3.10/init.js:74:10)↵ at resolve.callback (http://js.arcgis.com/3.10/init.js:75:350)↵ at c (http://js.arcgis.com/3.10/init.js:74:436)↵ at d (http://js.arcgis.com/3.10/init.js:74:10)↵ at resolve.callback (http://js.arcgis.com/3.10/init.js:75:350)↵ at http://js.arcgis.com/3.10/init.js:191:300"
__proto__: d

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

<!DOCTYPE html>

<html>

<head>

</head>

<body>

var map, featureLayer;

var featureURL = "http://dev.consciousglobalchange.org/arcgis/rest/services/MEP/webmap_catalog/FeatureServer/0";

require(["esri/map", "esri/layers/FeatureLayer", "dojo/domReady!"],function(Map,FeatureLayer) {

map = new Map("mapDiv", {

center: [-56.049, 38.485],

zoom: 3,

basemap: "streets"

});

var featureLayer = new FeatureLayer(featureURL);

map.addLayer(featureLayer);

</body>

</html>

Re: Error when adding a feature layer

JakeSkinner — Mon, 13 Oct 2014 20:18:47 GMT

Hi Joe,

You will want to keep your script in your <head> tags (see below). Here is a great tutorial on building your first application.

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
    
    <link rel="stylesheet" href="http://js.arcgis.com/3.10/js/esri/css/esri.css">
    
    <style>
      html, body, #mapDiv {
        padding:0;
        margin:0;
        height:100%;
      }
    </style>
        
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
    
    <script src="http://js.arcgis.com/3.10/"></script>
    <script type="text/javascript">      
      require([
        "esri/map", "esri/layers/FeatureLayer", "dojo/domReady!"
      ],
      function(
        Map, FeatureLayer
      ) {

        map = new Map("mapDiv", {
          center: [-56.049, 38.485],
          zoom: 3,
          basemap: "streets"
        });
        
        var featureURL = "http://dev.consciousglobalchange.org/arcgis/rest/services/MEP/webmap_catalog/FeatureServer/0";
        var featureLayer = new FeatureLayer(featureURL,{
          mode: FeatureLayer.MODE_ONDEMAND
        });

        map.addLayer(featureLayer);
        
      })
    </script>
  </head>

  <body>
    <div id="mapDiv"></div>
  </body>

</html>

Re: Error when adding a feature layer

joepublic — Mon, 13 Oct 2014 21:06:11 GMT

Jake,

I did as you suggested but still the error

Chris

Re: Error when adding a feature layer

joepublic — Mon, 13 Oct 2014 21:29:20 GMT

Jake,

I think there is problem with the server hosting the esri software

Thanks

Joe