Server Error in '/' Application.

Sequence contains no elements

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.InvalidOperationException: Sequence contains no elements

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:


[InvalidOperationException: Sequence contains no elements]
   System.Data.Linq.SqlClient.QueryConverter.VisitInvocation(InvocationExpression invoke) +437
   System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +1226
   System.Data.Linq.SqlClient.QueryConverter.Visit(Expression node) +18
   System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +18
   System.Data.Linq.SqlClient.QueryConverter.VisitMethodCall(MethodCallExpression mc) +1072
   System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +975
   System.Data.Linq.SqlClient.QueryConverter.Visit(Expression node) +18
   System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +18
   System.Data.Linq.SqlClient.QueryConverter.VisitWhere(Expression sequence, LambdaExpression predicate) +128
   System.Data.Linq.SqlClient.QueryConverter.VisitSequenceOperatorCall(MethodCallExpression mc) +3083
   System.Data.Linq.SqlClient.QueryConverter.VisitMethodCall(MethodCallExpression mc) +76
   System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +975
   System.Data.Linq.SqlClient.QueryConverter.Visit(Expression node) +18
   System.Data.Linq.SqlClient.QueryConverter.VisitSelect(Expression sequence, LambdaExpression selector) +18
   System.Data.Linq.SqlClient.QueryConverter.VisitSequenceOperatorCall(MethodCallExpression mc) +1010
   System.Data.Linq.SqlClient.QueryConverter.VisitMethodCall(MethodCallExpression mc) +76
   System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +975
   System.Data.Linq.SqlClient.QueryConverter.Visit(Expression node) +18
   System.Data.Linq.SqlClient.QueryConverter.VisitFirst(Expression sequence, LambdaExpression lambda, Boolean isFirst) +21
   System.Data.Linq.SqlClient.QueryConverter.VisitSequenceOperatorCall(MethodCallExpression mc) +3158
   System.Data.Linq.SqlClient.QueryConverter.VisitMethodCall(MethodCallExpression mc) +76
   System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +975
   System.Data.Linq.SqlClient.QueryConverter.ConvertOuter(Expression node) +82
   System.Data.Linq.SqlClient.SqlProvider.BuildQuery(Expression query, SqlNodeAnnotations annotations) +117
   System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +137
   System.Data.Linq.DataQuery`1.System.Linq.IQueryProvider.Execute(Expression expression) +28
   System.Linq.Queryable.First(IQueryable`1 source) +216
   Pegasus.Models.PricingModel.Retail(Int32 productID) in Y:\Pegasusold\www\Models\PricingModel.cs:36
   Pegasus.Models.ProductModel.GetPrice(Int32 id) in Y:\Pegasusold\www\Models\ProductModel.cs:194
   Pegasus.Models.Basket.AddItem(Int32 id, Int32 quantity) in Y:\Pegasusold\www\Models\Basket.cs:77
   Pegasus.Models.CheckoutModel.AddItem(Int32 id, Int32 quantity) in Y:\Pegasusold\www\Models\CheckoutModel.cs:56
   Pegasus.Controllers.CheckoutController.Add(String page, Int32 id) in Y:\Pegasusold\www\Controllers\CheckoutController.cs:50
   lambda_method(ExecutionScope , ControllerBase , Object[] ) +126
   System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +17
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +178
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +24
   System.Web.Mvc.<>c__DisplayClassd.<InvokeActionMethodWithFilters>b__a() +53
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +258
   System.Web.Mvc.<>c__DisplayClassf.<InvokeActionMethodWithFilters>b__c() +20
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +193
   System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +300
   System.Web.Mvc.Controller.ExecuteCore() +104
   System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +36
   System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +7
   System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__4() +34
   System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21
   System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +52
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +30
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +7
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8677678
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155


Version Information: Microsoft .NET Framework Version:2.0.50727.3082; ASP.NET Version:2.0.50727.3082