Thanks for the reply. The console report:
NullReferenceException: Object reference not set to an instance of an object
AC.SettingsManager.ShowGUI () (at Assets/AdventureCreator/Scripts/Managers/SettingsManager.cs:520)
AdventureCreator.OnGUI () (at …
I followed your directions on my machine, and the compiler sent this error:
"Assets/AdventureCreator/Scripts/Save system/Serializer.cs(99,43): error CS0126: An object of a type convertible to `T' is required for the return statement"