Using GeoJsonLayer in react with esri-loader

[particular]

I'm trying to use esri-loader in react but can't seem to get hold of "GeoJsonLayer"

In  the browser console it says a 404 for it 

(index):52 GET https://js.arcgis.com/4.18/esri/layers/GeoJsonLayer.js net::ERR_ABORTED 404

Like this 

loadModules(['esri/Map', 'esri/views/MapView', 'esri/layers/GeoJsonLayer'])

        .then(([ArcGISMap, MapView, GeoJsonLayer]) => {

Here's my code

https://github.com/parameter/navdock_map/blob/master/client/src/App.js

[particular]

Sorry. I tried to remove it. 

It was a missspelling!