Alglib C# - No namespaces could be found

Hi, I been trying to use alglibnet2.dll( but the c# component isn’t able to recognize it, I’m pretty new with using dll inside grasshopper, so I don’t know if the problem has to do with Net framework version…so Any ideas? Thanks.

So far so good over here:

How have you referenced it?

Hi, thanks for the help, with Manage Assemblies, I’m using Rhino 5 so that might be a problem, what version of alglib are you using? When you say reference you are talking about adding the dll to the c# component assembly list or about adding the reference in the source code?