C# trouble with JObject

[alonto]

I have this code for my web-part for sharepoint:\[code\]using System;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.Script.Serialization;using Newtonsoft.Json.Linq;namespace ScheduleWeeks.WP_ScheduleWeek{ public partial class WP_ScheduleWeekUserControl : UserControl { protected void Page_Load(object sender, EventArgs e) { if (Request.Params["jsonData"] != null) { string jsonStr = Request.Params["jsonData"]; JObject root = JObject.Parse(jsonStr); } else { Response.Write("nothing there"); } } }}\[/code\]But it doesn't work and show an error like \[quote\] [FileNotFoundException: Could not load file or assembly 'Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. Couldn't locate a file.]\[/quote\]But then I comment string "\[code\]JObject root = JObject.Parse(jsonStr);\[/code\]" all works without any errors. What I do in a wrong way?P.S.: Json.net was installed with NuGet.