[InvalidOperationException: 序列不包含任何元素]
System.Linq.Enumerable.First(IEnumerable`1 source) +336
System.Data.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__0(IEnumerable`1 sequence) +41
System.Data.Objects.ELinq.ObjectQueryProvider.ExecuteSingle(IEnumerable`1 query, Expression queryRoot) +59
System.Data.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute(Expression expression) +150
System.Linq.Queryable.First(IQueryable`1 source, Expression`1 predicate) +300
Mag.EF.Controllers.OpenAccess_publishArticlesController.GetByPidAndMagid(String pid, KwMagazineEntities db, Int32 magid) +476
Mag.Web.Open.showAbstrPage.SetHits(String articelid) +84
Mag.Web.Open.showAbstrPage.Page_Load(Object sender, EventArgs e) +108
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +91
System.Web.UI.Control.LoadRecursive() +74
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207
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