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]
   Microsoft.Xrm.Sdk.Linq.QueryProvider.ThrowException(Exception exception) +12
   Microsoft.Xrm.Sdk.Linq.QueryProvider.Execute(QueryExpression qe, Boolean throwIfSequenceIsEmpty, Boolean throwIfSequenceNotSingle, Projection projection, NavigationSource source, List`1 linkLookups, String& pagingCookie, Boolean& moreRecords) +902
   Microsoft.Xrm.Sdk.Linq.QueryProvider.Execute(QueryExpression qe, Boolean throwIfSequenceIsEmpty, Boolean throwIfSequenceNotSingle, Projection projection, NavigationSource source, List`1 linkLookups) +121
   Microsoft.Xrm.Sdk.Linq.QueryProvider.Execute(Expression expression) +277
   Microsoft.Xrm.Sdk.Linq.QueryProvider.System.Linq.IQueryProvider.Execute(Expression expression) +72
   Site.Pages.KbArticle.get_KnowledgeArticle() in C:\Users\javier.olmo\source\repos\ONEVIEW\Respond-Portal\311PortalSolutionAzure\311Portal\Pages\KbArticle.aspx.cs:70
   Site.Pages.KbArticle.Page_Load(Object sender, EventArgs e) in C:\Users\javier.olmo\source\repos\ONEVIEW\Respond-Portal\311PortalSolutionAzure\311Portal\Pages\KbArticle.aspx.cs:151
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4690.0