[ArgumentNullException: 值不能为 null。
参数名: source]
System.Linq.Enumerable.Where(IEnumerable`1 source, Func`2 predicate) +640
WanerSoft.BLL.Book.<>c__DisplayClass44.<FindVolumesAndChapters>b__3b(Ws_BookVolume x) +129
System.Collections.Generic.List`1.ForEach(Action`1 action) +236
WanerSoft.BLL.Book.Ws_BookList_Bll.FindVolumesAndChapters(Ws_BookList M, Boolean isVip) +890
WanerSoft.BLL.Book.Ws_BookList_Bll.CreatChapterXmlFile(Ws_BookList M) +413
WanerSoft.BLL.Book.Ws_BookList_Bll.FindChaptersFromXML(Ws_BookList M) +18
WanerSoft.Web.UI.Page.Novel.book.show.Page_Load(Object sender, EventArgs e) +1758
System.Web.UI.Control.OnLoad(EventArgs e) +97
System.Web.UI.Control.LoadRecursive() +154
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4740
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