Rhywun (23) [Avatar] Offline
Try removing the namespace Domain declaration from Domain.fs – you’ll
notice it still lives in the global.Domain namespace.

I get an error saying:

Files in libraries or multiple-file applications must begin with a namespace or module declaration, e.g. 'namespace SomeNamespace.SubNamespace' or 'module SomeNamespace.SomeModule'. Only the last source file of an application may omit such a declaration.

Isaac Abraham (68) [Avatar] Offline
You're right again. I don't know why I put that in - it only works for the last file in an application. I've removed that section from the book now as it's not that useful to know.