System.ArgumentException: An entry with the same key already exists.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.TreeSet`1.AddIfNotPresent(T item)
at System.Collections.Generic.SortedDictionary`2.Add(TKey key, TValue value)
at Source_WS_MasterPages_WSMaster.MakeBreadcrumbs(String breadcrumbItemTemplate, Int32 id, SqlConnection conn)
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