Error while trying to connect WebClient to Lua

[corruptedbyte]

using NLua;
using System;
using System.IO;
using System.Diagnostics;
using System.Windows.Forms;
using System.Linq;
using System.Text;

namespace Asbestos
{
    internal class Program
    {
        static void Main()
        {
            Lua state = new Lua();
            state.State.Encoding = Encoding.UTF8;
            state.LoadCLRPackage();
            state.DoString(File.ReadAllText("script.lua"));
        }
    }
}

Lua

import('System.Net')

client = WebClient()

The error:

Unhandled Exception: NLua.Exceptions.LuaScriptException: [string "chunk"]:3: attempt to call a nil value (global 'WebClient')
   at NLua.Lua.ThrowExceptionFromError(Int32 oldTop)
   at NLua.Lua.DoString(String chunk, String chunkName)
   at Asbestos.Program.Main() in D:\Dev\Sharp\Asbestos\Asbestos\Program.cs:line 17

[viniciusjarina]

It works from C# side? Aren't you missing a Reference ?