import lib for script operator

[akis]

An assembly will be a C# DLL. You can type the full path into the assembly loader textbox or just the name if it's placed in the Max root directory.

thanks for the help, however ive tried all possible versions and getting this error:

the type System.Object is defined in an assembly that is not referenced..
you must add a reference to 'System.Runtime, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'

tried with version netstandard2.0 i get the same error..
with versions 4 i got different error.. it can't find the file..

searching on the web does not give solution, however other users say they used previous versions and worked..
 ive tried: using MathNet.Numerics.LinearAlgebra; 
that doesnt give error, however it doesnt work, because it says that System.Runtime is not referenced..
i dont understand what is wrong with this version..