When using the map features prefab spawner, I get this error

The error is
NullReferenceException: Object reference not set to an instance of an object
Niantic.Lightship.Maps.Samples.GameSample.MapFeaturePrefabSpawner.Build (Niantic.Lightship.Maps.Core.IMapTile mapTile, UnityEngine.GameObject parent) (at Assets/Samples/Lightship Maps SDK/0.4.0/Map-Based Resource Game/Scripts/MapFeaturePrefabSpawner.cs:27)
Niantic.Lightship.Maps.Internal.MapTileObject.BuildStandardBuilder (Niantic.Lightship.Maps.Builders.IFeatureBuilder builder, Niantic.Lightship.Maps.MapTileObjectHelpers.TilePair tile) (at ./Library/PackageCache/com.niantic.lightship.maps@fb4247cae5/Runtime/Niantic.Lightship.Maps/Internal/MapTileObject.Async.cs:129)
Niantic.Lightship.Maps.Internal.MapTileObject.Build (System.Collections.Generic.IReadOnlyList1[T] mapTiles, Niantic.Lightship.Maps.Jobs.IBuilderJobMonitorManager builderJobMonitorManager) (at ./Library/PackageCache/com.niantic.lightship.maps@fb4247cae5/Runtime/Niantic.Lightship.Maps/Internal/MapTileObject.Async.cs:105) Niantic.Lightship.Maps.LightshipMapView.AddMapTiles (System.Collections.Generic.IReadOnlyList1[T] mapTiles) (at ./Library/PackageCache/com.niantic.lightship.maps@fb4247cae5/Runtime/Niantic.Lightship.Maps/LightshipMapView.cs:491)
Niantic.Lightship.Maps.LightshipMapView.Update () (at ./Library/PackageCache/com.niantic.lightship.maps@fb4247cae5/Runtime/Niantic.Lightship.Maps/LightshipMapView.cs:258)

Hi Hassan,

I’m sorry to hear you’re having trouble with Maps. Could you give me some more information on the Unity and ARDK versions you’re running? Have you modified any scripts or the scenes at all?

Kind regards,
Maverick L.