<entry>
    <record>746</record>
    <time>2017/11/17 18:49:57.319</time>
    <type>Error</type>
    <source>Editor or Editor Extension</source>
    <description>
        System.ArgumentNullException: Value cannot be null.
        Parameter name: value
        at System.Enum.ToObject(Type enumType, Object value)
        at Microsoft.VisualStudio.Shell.DialogPage.SetPropertyValue(PropertyDescriptor descriptor, Object automationObject, Object value)
        at Microsoft.VisualStudio.Shell.DialogPage.LoadSettingFromStorage(PropertyDescriptor prop)
        at Microsoft.VisualStudio.Shell.DialogPage.LoadSettingsFromStorage()
        at Microsoft.VisualStudio.Shell.DialogPage.set_Site(ISite value)
        at System.ComponentModel.Container.Add(IComponent component, String name)
        at System.ComponentModel.Container.Add(IComponent component)
        at Microsoft.VisualStudio.Shell.Package.GetDialogPage(Type dialogPageType)
        at Microsoft.VisualStudio.Html.Package.Package.CSS.CssPackage.GetAutomationObject(String name)
        at Microsoft.VisualStudio.Shell.Package.Microsoft.VisualStudio.Shell.Interop.IVsPackage.GetAutomationObject(String propName, Object& auto)
        at Microsoft.VisualStudio.Web.Editor.Package.Settings.Common.WebSettingsStorageWithDialog.LoadFromStorage()
        at Microsoft.Web.Editor.Host.WebEditor.GetSettings(String contentTypeName)
        at Microsoft.CSS.Editor.Settings.CssSettings.get_Storage()
        at Microsoft.CSS.Editor.Settings.CssSettings.get_ValidationEnabled()
        at Microsoft.CSS.Editor.Checker.CssErrorTagger..ctor(ITextBuffer textBuffer)
        at Microsoft.CSS.Editor.Checker.CssErrorTagger.Attach(ITextBuffer textBuffer)
        at Microsoft.CSS.Editor.Checker.CssErrorTaggerProvider.CreateTagger[T](ITextBuffer textBuffer)
        at Microsoft.VisualStudio.Text.Tagging.Implementation.TagAggregator`1.GatherTaggers(ITextBuffer textBuffer)
        --- End of stack trace from previous location where exception was thrown ---
        at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)
    </description>
  </entry>