[InvalidOperationException: Sequence contains no matching element]
System.Linq.Enumerable.First(IEnumerable`1 source, Func`2 predicate) +276
Stovall.Web.portfolio.CreateNav(String photoSetId) +116
Stovall.Web.portfolio.Page_Load(Object sender, EventArgs e) +152
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
System.Web.UI.Control.OnLoad(EventArgs e) +95
System.Web.UI.Control.LoadRecursive() +59
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +678
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