No mapping exists from object type System.Collections.Generic.List when executing stored proc with parameters in EF 4.3

Question

Lately I\'ve been working on stored procedure and encountered 1 strange problem.

First, I was able to successfully call a stored procedure from the database via:

Answer 1

didn't state SQL Server version, but Erland Sommarskog has an article on how to use Table-Valued Parameters in SQL Server and .NET.

http://www.sommarskog.se/arrays-in-sql-2008.html

Able to pass a variable amount of arguments from client using a single parameter.