Server Error in '/' Application.

Sequence contains no matching element

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: Sequence contains no matching element

Source Error:


Line 10:     var attr = Model.SearchType == RetrieveBookingViewModel.TypeOfSearch.RecordLocator ? MvcHtmlString.Empty : hiddenAttr;
Line 11:     var langHelper = ResolveService<LanguageHelper>();
Line 12:     var langSwitchModel = langHelper.GetLanguageSelector(Html);
Line 13:     var resourcesService = ResolveService<S2ResourcesService>();
Line 14: 

Source File: c:\inetpub\tfl-tuiflycom-prod\Views\WebCheckIn\Partials\_Login-TUI.cshtml    Line: 12

Stack Trace:


[InvalidOperationException: Sequence contains no matching element]
   System.Linq.Enumerable.First(IEnumerable`1 source, Func`2 predicate) +396
   S2.TUIflycom.Web.Helpers.LanguageHelper.GetLanguageSelector(HtmlHelper helper) in D:\builds\6zvyLFVQ\0\aviation\sales-platform\seat-only\WebCheckin\webcheckin\S2.TUIflycom.Web\Helpers\LanguageHelper.cs:51
   ASP._Page_Views_webcheckin_Partials__Login_TUI_cshtml.Execute() in c:\inetpub\tfl-tuiflycom-prod\Views\WebCheckIn\Partials\_Login-TUI.cshtml:12
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +252
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +147
   Navitaire.Ncui.Web.Mvc.Framework.BaseView`1.ExecutePageHierarchy() +102
   Navitaire.Ncui.Web.Mvc.Framework.BaseView`1.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +912
   System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData) +136
   ASP._Page_Views_webcheckin_Partials__LoginWrapper_cshtml.Execute() in c:\inetpub\tfl-tuiflycom-prod\Views\WebCheckIn\Partials\_LoginWrapper.cshtml:38
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +252
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +147
   Navitaire.Ncui.Web.Mvc.Framework.BaseView`1.ExecutePageHierarchy() +102
   Navitaire.Ncui.Web.Mvc.Framework.BaseView`1.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +912
   System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData) +136
   ASP._Page_Views_webcheckin_Login_cshtml.<Execute>b__0() in c:\inetpub\tfl-tuiflycom-prod\Views\WebCheckIn\Login.cshtml:2
   System.Web.WebPages.<>c__DisplayClassb.<RenderSection>b__9(TextWriter tw) +414
   System.Web.WebPages.WebPageBase.Write(HelperResult result) +108
   ASP._Page_Views_Shared__Layout_cshtml.Execute() in c:\inetpub\tfl-tuiflycom-prod\Views\Shared\_Layout.cshtml:51
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +252
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +147
   Navitaire.Ncui.Web.Mvc.Framework.BaseView`1.ExecutePageHierarchy() +102
   Navitaire.Ncui.Web.Mvc.Framework.BaseView`1.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +912
   Navitaire.Ncui.Web.Mvc.Framework.<>c__DisplayClass86_0.<renderPageCore>b__0(TextWriter writer) +546
   System.Web.WebPages.WebPageBase.Write(HelperResult result) +108
   Navitaire.Ncui.Web.Mvc.Framework.BaseView`1.RenderSurrounding(String partialViewName, Action`1 body) +201
   Navitaire.Ncui.Web.Mvc.Framework.BaseView`1.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +802
   System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +378
   System.Web.Mvc.<>c__DisplayClass1a.<InvokeActionResultWithFilters>b__17() +31
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +448
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +448
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +448
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +448
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +448
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +448
   System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult) +187
   Navitaire.Ncui.Web.Mvc.Framework.BaseActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
   System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult) +30
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +25
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +52
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +25
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
   System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult) +44
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +25
   Navitaire.Ncui.Web.Mvc.Framework.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +44
   S2.TUIflycom.Web.Core.Application.S2MvcHandler.EndProcessRequest(IAsyncResult asyncResult) in D:\builds\6zvyLFVQ\0\aviation\sales-platform\seat-only\WebCheckin\webcheckin\S2.TUIflycom.Web\Core\Application\S2MvcHandler.cs:81
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +431
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +75
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +158


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0