new Navigation object throwing error

[NigelAlford]

whenever I'm instantiating a new Navigation object I'm getting an error:

Cannot read property 'query' of null 

upon inspection of the objects everything looks correct but it fails every time.  Has anyone else experienced this?

I'm using ArcGIS js version 3.6

Here's my instantiation call:

require(['esri/map', 'esri/layers/ArcGISTiledMapServiceLayer', 'esri/layers/ArcGISDynamicMapServiceLayer', 'esri/symbols/PictureMarkerSymbol', 'esri/renderers/SimpleRenderer', 'esri/toolbars/navigation', 'esri/dijit/Scalebar'], function(Map, ArcGISTiledMapServiceLayer, Navigation, Scalebar) {       nsmap.map = new Map(mapID, {         basemap: 'gray', //valid options: "streets" , "satellite" , "hybrid", "topo", "gray", "osm"         center: [-84.858, 37.388],         zoom: initLevel,         lods: lod,         slider: false       });        nsmap.nav = new Navigation(nsmap.map);      });

Thanks

[VinayBansal · Accepted solution]

Your require classes does not match with the function arguments order......

require([  "esri/toolbars/Navigation", "dijit/registry", ...  ], function( Navigation, registry, ... ) {

Order must be followed when creating a function with require. Your navigation object is taking reference of 'esri/layers/ArcGISDynamicMapServiceLayer'