The request failed.
System.InvalidOperationException: Sequence contains no elements
at System.Linq.Enumerable.Aggregate[TSource](IEnumerable1 source, Func
3 func)
at KoS.Apps.SharePoint.SmartCAML.Providers.SharePoint2013ClientProvider.Converter.LookupCollectionValueToString(FieldLookupValue[] value)
at KoS.Apps.SharePoint.SmartCAML.Providers.SharePoint2013ClientProvider.SharePoint2013ClientModelProvider.ElementSelector(Field field, ListItem item)
at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable1 source, Func
2 keySelector, Func2 elementSelector, IEqualityComparer
1 comparer)
at lambda_method(Closure , ListItem )
at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
at System.Collections.Generic.List1..ctor(IEnumerable
1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at KoS.Apps.SharePoint.SmartCAML.Providers.SharePoint2013ClientProvider.SharePoint2013ClientModelProvider.d__13.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at KoS.Apps.SharePoint.SmartCAML.Editor.MainWindow.<RunQueryCommand_Executed>d__11.MoveNext()