Non-generic type StringEnumerator cannot be used with type arguments

Hi everyone,

I'm following this article about StringEnumerator but I'm encountering a "The non-generic type 'System.Collections.Specialized.StringEnumerator' cannot be used with type arguments" error on line 2 of Program.Main().

Here's what I have so far.

class Program
{

static void Main(string[] args)
{

Class1.EQReply reply = Class1.EQReply.MessageCount;

string x = StringEnumerator.ToString(reply);

//Console.WriteLine(reply.ToString());
Console.WriteLine(x);

Console.ReadLine();

}

}

class Class1
{

public enum EQReply
{

[Description("APIDRIVER")]
ApiDriver,
[Description("MSGCOUNT")]
MessageCount,

}

}