I have the scenes in the build settings in order, and the script with no errors but still get this error on the console: Scene ‘Menu’ couldn’t be loaded because it has not been added to the build settings or the AssetBundle has not been loaded.
To add a scene to the build settings use the menu File->Build Settings…
UnityEngine.SceneManagement.SceneManager:LoadScene (string)
Preloader:Update () (at Assets/Scripts/Preloader.cs:37)
go to File → Build Settings. at the very top you should see a list of scenes. open your Menu scene in unity and click “Add open Scenes” and it should be added to the list (make sure its checked)