I downloaded a sample code for webapi and I am getting this exception I opened this sample using Visual Studio 2012 Ultimate Version and I have latest verion of newtonsoft installed.I am getting this error when I run this application.Its compiling successfully. Any idea why this error and is there a way to resolve this exception.

System.MissingMethodException was unhandled by user code
  HResult=-2146233069
  Message=Method not found: 'Void Newtonsoft.Json.Serialization.DefaultContractResolver.set_IgnoreSerializableAttribute(Boolean)'.
  Source=System.Net.Http.Formatting
  StackTrace:
       at System.Net.Http.Formatting.JsonContractResolver..ctor(MediaTypeFormatter formatter)
       at System.Net.Http.Formatting.JsonMediaTypeFormatter..ctor()
       at System.Net.Http.Formatting.MediaTypeFormatterCollection.CreateDefaultFormatters()
       at System.Net.Http.Formatting.MediaTypeFormatterCollection..ctor()
       at System.Web.Http.HttpConfiguration.DefaultFormatters()
       at System.Web.Http.HttpConfiguration..ctor(HttpRouteCollection routes)
       at System.Web.Http.GlobalConfiguration.<.cctor>b__0()
       at System.Lazy`1.CreateValue()
       at System.Lazy`1.LazyInitValue()
       at System.Lazy`1.get_Value()
       at System.Web.Http.GlobalConfiguration.get_Configuration()
       at System.Web.Http.RouteCollectionExtensions.MapHttpRoute(RouteCollection routes, String name, String routeTemplate, Object defaults, Object constraints, HttpMessageHandler handler)
       at System.Web.Http.RouteCollectionExtensions.MapHttpRoute(RouteCollection routes, String name, String routeTemplate, Object defaults)
       at WebAPIRc.RouteConfig.RegisterRoutes(RouteCollection routes) in c:\Users\viemon\Downloads\WebAPIRc\WebAPIRc\WebAPIRc\App_Start\RouteConfig.cs:line 17
       at WebAPIRc.WebApiApplication.Application_Start() in c:\Users\viemon\Downloads\WebAPIRc\WebAPIRc\WebAPIRc\Global.asax.cs:line 36
  InnerException:

Here is th

c# visual-studio-2012 json.net
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