Not running on unity3d 2018

[Pic9236]

I run this project on android but app crash. After that i am trying to run this code with latest ar core unity3d plugin but i get this error.

Assets/UnityARInterface/Scripts/ARCoreInterface.cs(8,22): error CS0246: The type or namespace name `GoogleAR' could not be found. Are you missing an assembly reference?

Kindly let me know how run your project with latest AR core plugin.

[grobm]

In 2018 they integrated the ARcore and ARkit functions... you may need to look at updating your worldscale code from mapbox