System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Contnet.Lib.Mobile.MobileComponents.Adapters.Xhtml.MobilePageXhtmlAdapter.RenderOpeningBodyElement(XhtmlMobileTextWriter writer) in C:\Projekte\WAP-Projects\MobileComponents2\Adapters\Xhtml\MobilePageXhtmlAdapter.cs:line 420
   at Contnet.Lib.Mobile.MobileComponents.Adapters.Xhtml.MobilePageXhtmlAdapter.Render(XhtmlMobileTextWriter writer) in C:\Projekte\WAP-Projects\MobileComponents2\Adapters\Xhtml\MobilePageXhtmlAdapter.cs:line 69
   at System.Web.UI.MobileControls.Adapters.XhtmlAdapters.XhtmlControlAdapter.Render(HtmlTextWriter writer)
   at System.Web.UI.MobileControls.MobilePage.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.MobileControls.MobilePage.RenderControl(HtmlTextWriter writer)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   --- End of inner exception stack trace ---
   at System.Web.UI.Page.HandleError(Exception e)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest()
   at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
   at System.Web.UI.Page.ProcessRequest(HttpContext context)
   at System.Web.Mobile.ErrorHandlerModule.Application_Error(Object source, EventArgs e)