Possible error:
1. The referenced script (***) on this Behaviour is missing!
(Inheriting MonoBehaviour or ScriptableObject will cause this error)
2. The associated script can not be loaded. Please fix any compile errors and assign a valid script.
3. No script asset for ***. Check that the definition is in a file of the same name and that it compiles properly.
reason:
public class AppConfigSettingData : ScriptableObject
{
}The AppConfigSettingData class name must have the same name as the C# file AppConfigSettingData.cs. Just modify the cs file name to be consistent with the class name.