C# type defined in an assembly that is not referenced

Question

I have two projects A and B. Project A makes use of type X in project B, so I have a reference to B added in A. Everything built fine.

I signed project B using a s

Answer 1

What worked for me was to remove the reference to the project, then add it back in again. A new error message appeared stating that I needed a reference to a third library that was missing, so the original message was a bit misleading!