title: Object reference not set to an instance of an object at lambda method (MVC ASP)
body: <p>I am developing an application in MVC. Everything works great when I'm debugging, in every browser.
  The problem is that I can't make it work once I install the application in the server, because it shows me the next exception only in IE8,:</p>
  
  <pre><code>Object reference not set to an instance of an object.
     at Eco.Administration.Web.UI.Controllers.CatalogController.ProcesarListaFactoresPorFiltro(String Rama, String TipoCredito, String Periodo, String Ubicacion)
     at Eco.Administration.Web.UI.Controllers.CatalogController.EcoEditaXML(String Ram, String Tip, String Perio, String ubica, Int32 Id, String mensaje)
     at *lambda_method(Closure ,* ControllerBase , Object[] )
     at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
     at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
     at System.Web.Mvc.ControllerActionInvoker.&lt;&gt;c__DisplayClass15.&lt;InvokeActionMethodWithFilters&gt;b__12()
     at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
     at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
     at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
  </code></pre>
  
  <p>I have realized that when I delete a line in my controller (a lambda function) it works fine. </p>
  
  <p>Does anybody knows if there is a problem in IE8 related to lambda functions?
  Could it be a misconfiguration in IIS?</p>