Server Error in '/' Application.

Value cannot be null.
Parameter name: value

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: value

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: value]
   System.Web.Caching.CacheEntry..ctor(String key, Object value, CacheDependency dependency, CacheItemRemovedCallback onRemovedHandler, DateTime utcAbsoluteExpiration, TimeSpan slidingExpiration, CacheItemPriority priority, Boolean isPublic) +8958411
   System.Web.Caching.CacheInternal.DoInsert(Boolean isPublic, String key, Object value, CacheDependency dependencies, DateTime utcAbsoluteExpiration, TimeSpan slidingExpiration, CacheItemPriority priority, CacheItemRemovedCallback onRemoveCallback, Boolean replace) +93
   System.Web.Caching.Cache.Insert(String key, Object value, CacheDependency dependencies, DateTime absoluteExpiration, TimeSpan slidingExpiration) +79
   Helpers.CacheHelper.Add(T o, String key, Double minutes) in C:\Project\asp.net\Visual Studio 2008\Projects\ell-dikamas\ell-dikamas\Helpers\CacheHelper.cs:27
   BLL.ElladikaPortal.PostMapSiteMapNode(HttpContext context, EcmsPortal portal) in C:\Project\asp.net\Visual Studio 2008\Projects\ell-dikamas\ell-dikamas\BLL\ElladikaPortal.cs:112
   GreekGeeks.Ementor.Ecms.Portals.eMentorPortal.OnEnter(Object sender, EventArgs e) in G:\DOTNET_PROJECTS\eMentor4\eMentor4\GreekGeeks.Ementor.Ecms\Portals\eMentorPortal.cs:388
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75


Version Information: Microsoft .NET Framework Version:2.0.50727.9061; ASP.NET Version:2.0.50727.9062