Server Error in '/' Application.

An item with the same key has already been added.

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.ArgumentException: An item with the same key has already been added.

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:


[ArgumentException: An item with the same key has already been added.]
   System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) +60
   System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) +14064084
   Review.BO.KeywordsBO.GetKeywordSEOSearch(List`1 listNews, Int32 top) in c:\data\Code\TinBaiHay.net\Review.BO\KeywordsBO.cs:173
   Review.BO.NewsPublished.NewsSearchV2(Int32 categoryId, String keyword, Int32 pageIndex, Int32 pageSize, Int32& totalCount, List`1& listKeywordSeo, Int32 outputType, Int32 orderBy, String lang) in c:\data\Code\TinBaiHay.net\Review.BO\NewsPublished.cs:369
   WebQ.Controls.News.Box300.Box300TopView.Page_Load(Object sender, EventArgs e) in c:\data\Code\TinBaiHay.net\WebTinBaiHay\Controls\News\Box300\Box300TopView.ascx.cs:34
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Control.LoadRecursive() +185
   System.Web.UI.Control.LoadRecursive() +185
   System.Web.UI.Control.LoadRecursive() +185
   System.Web.UI.Control.LoadRecursive() +185
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4676.0