I'm following the example.
Code Example - BaseMaps
But in this line VS cant find the namespace Esri.ArcGISRuntime.Layers.
Esri.ArcGISRuntime.Layers.ArcGISTiledMapServiceLayer myArcGISTiledMapServiceLayer = new Esri.ArcGISRuntime.Layers.ArcGISTiledMapServiceLayer();
And as you can see there isn't any Layers on ArcGISRuntime
