688 2015/08/26 05:40:39.965 Error Editor or Editor Extension System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.VisualStudio.Html.Package.Completion.Html.UrlEntryListProvider.GetIconForItemID(IVsHierarchy hierarchy, UInt32 itemid) at Microsoft.VisualStudio.Html.Package.Completion.Html.UrlEntryListProvider.GetEntries() at Microsoft.VisualStudio.Html.Package.Completion.Html.FileExtensionsAttributeValuesCompletion.GetUrlEntries(IHtmlElementInfo elementInfo, IHtmlAttributeInfo attributeInfo, HtmlCompletionContext context) at Microsoft.VisualStudio.Html.Package.Completion.Html.FileExtensionsAttributeValuesCompletion.GetEntries(HtmlCompletionContext context) at Microsoft.Html.Editor.Completion.HtmlCompletionSource.<>c__DisplayClass11_0.<PopulateCompletionList>b__0() at Microsoft.Web.Editor.Utility.GuardedOperations.InvokeExtensionPoint(Object errorSource, Action action)