No functions in C# DLL with RGiesecke.DllExport

Question

I am trying to make a DLL in C# for use in a couple other languages. I found RGiesecke\'s DllExport but it doesn\'t seem to work. It builds just fine and makes a dll, but

Answer 1

I had a similar problem, but had already set the platform target to x64 and had the following error:

The name 'CallingConvention' does not exist in the current context

I found adding the using directive System.Runtime.InteropServices resolve the problem.