DNN: 4.00.02

I'm periodically gettin this exception.  I finally hit it in the debugger at the following line:

Detailed exception follows:

AssemblyVersion: 04.00.02
Method: DotNetNuke.Services.Localization.Localization.GetResource
FileName:
FileLineNumber: 0
FileColumnNumber: 0
PortalID: 0
PortalName: Meadowdale High School Class of 1987
UserID: -1
UserName:
ActiveTabID: 73
ActiveTabName: Now and Then - H-J's
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
ExceptionGUID: aecc56b8-c717-4a76-8d42-65b7ee4c3184
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
InnerException: Object reference not set to an instance of an object.
Message: DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Services.Localization.Localization.GetResource(String ResourceFileRoot, PortalSettings objPortalSettings, String strLanguage) at DotNetNuke.Services.Localization.Localization.GetString(String name, String ResourceFileRoot, PortalSettings objPortalSettings, String strLanguage) at DotNetNuke.Services.Localization.Localization.GetString(String name) at DotNetNuke.Services.Exceptions.ErrorContainer..ctor(PortalSettings _PortalSettings, String strError, Exception exc) at DotNetNuke.UI.Skins.Skin.InjectModule(Control objPane, ModuleInfo objModule, PortalSettings PortalSettings) at DotNetNuke.UI.Skins.Skin.Page_Init(Object sender, EventArgs e) at System.Web.UI.Control.OnInit(EventArgs e) at System.Web.UI.UserControl.OnInit(EventArgs e) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.AddedControl(Control control, Int32 index) at System.Web.UI.ControlCollection.Add(Control child) at DotNetNuke.Framework.DefaultPage.Page_Init(Object sender, EventArgs e) in E:\inetpub\MHS87\Default.aspx.vb:line 490 at System.Web.UI.Control.OnInit(EventArgs e) at System.Web.UI.Page.OnInit(EventArgs e) at DotNetNuke.Framework.PageBase.OnInit(EventArgs e) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---

Looking at the code again, I realized I'm an idiot.  The original code is accessing an element in the collection, but if the collection is null, then it will always throw.  The correct fix should be to revert to the original code and wrap it with a check to see if the collection is null:

If (Not GetSupportedLocales() Is Nothing) Then
   If (Not GetSupportedLocales(userLanguage) Is Nothing) AndAlso (GetSupportedLocales(userLanguage).Fallback.ToLower <> "") Then
      fallbackLanguage = GetSupportedLocales(userLanguage).Fallback.ToLower
   End If
End If

I'll try out this fix to see if it works any better.