Value cannot be null.<br>Parameter name: outer

Server Error in '/' Application.

Value cannot be null.
Parameter name: outer

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: outer

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 


[ArgumentNullException: Value cannot be null.
Parameter name: outer]
   System.Linq.Enumerable.Join(IEnumerable`1 outer, IEnumerable`1 inner, Func`2 outerKeySelector, Func`2 innerKeySelector, Func`3 resultSelector) +1271521
   EFComSitecore.layouts.ILS.V2.Sublayouts.studentLife.AccomodationTypes.GetDestinationsForAccommodationType() in d:\EfcomBuild\EFLanguage.EFCom\QAILSBuild\Sources\Code\WebSite\layouts\ILS\V2\Sublayouts\studentLife\AccomodationTypes.ascx.cs:92
   EFComSitecore.layouts.ILS.V2.Sublayouts.studentLife.AccomodationTypes.Page_Load(Object sender, EventArgs e) in d:\EfcomBuild\EFLanguage.EFCom\QAILSBuild\Sources\Code\WebSite\layouts\ILS\V2\Sublayouts\studentLife\AccomodationTypes.ascx.cs:46
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42
   System.Web.UI.Control.OnLoad(EventArgs e) +132
   System.Web.UI.Control.LoadRecursive() +66
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Control.LoadRecursive() +191
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2428

Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053