Cannot set map extent in ArcGIS JavaScript API 3.17

Question

I have my map set to a custom projection SVY21/3414 This map service only supports Tiled and not Dynamic. I manually convert the projection coordinates using proj4 and it works fine for my graphics.

I can get an extent object using esri/GraphicsUtils of the graphics on map which seems to be valid. However if I try to set map extent to this object I get error

undefined "" 

in dojo.js

If I leave out the projection change and stick to 4236 it works fine. I'm using version 3.17

Here's some sample code

 require(["esri/graphicsUtils"], function(graphicsUtils) {
 map.setExtent(graphicsUtils.graphicsExtent(arr));
 });

Aforementioned code only works if I leave the projection change out. Following code is how the graphics array is formed

var symbol = new PictureMarkerSymbol();
symbol.setUrl(thisicon);
var latlng = proj4(projection,[longitude,latitude]);
var point = new Point({x:latlng[0],y:latlng[1]});
// "projection" is the wkt string
var graphic = new Graphic(point, symbol, attr, template);
map.graphics.add(graphic);

• emredelioglu: can you share your code or sample?
• Jabran Saeed: updated with sample code
• jon_two: Are you sure the extent returned by GraphicsExtent is valid? If you've only added a single point to the graphics, aren't you then setting the map extent to a single point?
• Jabran Saeed: actually this is inside a loop. can confirm array is being populated perfectly and the extent object looks to be normal but i could be wrong.
• emredelioglu: new point which coordinate system 4326 or SVY21/3414 var point = new Point({x:latlng[0],y:latlng[1]});

Answer 1

found out the issue was to give "Point" a spatialReference. emredelioglu you were right to point into that direction. Even though the graphics have spatialReference set to correct one automatically. Unless I deliberately give it to Point, it wont work with graphics extent.