I have been trying to use the updated ArcGIS API for Javascript, with ArcGIS Online. I have been testing with the sample code found on the "Create web map by ID" page:


If I download that and try to run it in Firefox, without making any changes, then the map does not show up and I get the following error reported in Firebug:

Error: Unable to load the base map layer
[Break On This Error]   

...);}},_getKind:function(_2ff){var _300=this._trackManager;if(_300){return _300.is...

utils.js (line 19)

The sample runs fine on the http://developers.arcgis.com/ site, I'm not sure why it would be failing for me. I am not accessing the web through a proxy.



Works fine after I changed the relative reference to layout.css -- cheers!

<link rel="stylesheet" href="css/layout.css">


<link rel="stylesheet" href="http://developers.arcgis.com/en/javascript/samples/ags_createwebmapid/css/layout.css">
  • I tried that, but it didn't work. I'm still getting the same issue on the base map layer. – Britt Wescott Apr 10 '13 at 16:12
  • 1
    Can you get other samples to work on your test platform? Different browsers? – awesomo Apr 10 '13 at 16:23
  • I also tested in IE and Chrome. I did try the sample for developers.arcgis.com/en/javascript/jssamples/map_simple.html and that one is working correctly. However, it is not using an ArcGIS Online map. – Britt Wescott Apr 10 '13 at 16:56
  • What about this one where you "Create web map using JSON"? Not using a proxy there either, but it does reference a base map... developers.arcgis.com/en/javascript/jssamples/… – awesomo Apr 10 '13 at 22:36
  • That one is working also. I'm trying to figure out why I'm getting the different behavior. – Britt Wescott Apr 11 '13 at 19:47

I was able to find an ArcGIS forum post for a similar issue:


The directions for creating a proxy page for viewing ArcGIS Online maps can be found here:



a simple way to create web maps is to install cartoview www.cartologic.com/cartoview and create a webmap the steps are available at http://cartologic.com/cartoview/apps/cartoserver/help/webmap/#settings

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