Error executing template "Designs/Swift/Navigation/BreadcrumbNavigation.cshtml"
System.ArgumentException: An item with the same key has already been added.
   at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
   at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   at Dynamicweb.Ecommerce.Products.GroupRelation.GetGroupRelationsByChildId(String childId)
   at Dynamicweb.Ecommerce.Products.Group.get_IsTopGroup()
   at Dynamicweb.Ecommerce.Shops.Shop.GetTopLevelGroups(String languageId)
   at Dynamicweb.Ecommerce.Frontend.Navigation.GroupNavigationTreeNodeProvider.GetGroupsBySettings(PageNavigationSettings ecomSettings)
   at Dynamicweb.Ecommerce.Frontend.Navigation.GroupNavigationTreeNodeProvider.GetGroups(NavigationTreeNode parent, Page page)
   at Dynamicweb.Ecommerce.Frontend.Navigation.GroupNavigationTreeNodeProvider.GetNodes(NavigationContext context, NavigationSettings settings, NavigationTreeNode parent)
   at System.Linq.Enumerable.<SelectManyIterator>d__17`2.MoveNext()
   at System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable`1 source, Func`2 predicate)
   at Dynamicweb.Frontend.Navigation.NavigationService.FilterNodesByExpandMode(NavigationContext context, NavigationSettings settings, NavigationTreeNode parent, IEnumerable`1 nodes, Int32 nodesLevel)
   at Dynamicweb.Frontend.Navigation.NavigationService.GetNavigationNodes(NavigationContext context, NavigationSettings settings, NavigationTreeNode parent)
   at Dynamicweb.Frontend.Navigation.NavigationTreeNodeViewModel.get_Nodes()
   at CompiledRazorTemplates.Dynamic.RazorEngine_a3ab6498e1a642e2ba1ca69214412b16.<>c__DisplayClass0_0.<RenderNodes>b__0(TextWriter __razor_helper_writer) in D:\dynamicweb.net\Solutions\Zington\ote.cloud.dynamicweb-cms.com\files\Templates\Designs\Swift\Navigation\BreadcrumbNavigation.cshtml:line 41
   at CompiledRazorTemplates.Dynamic.RazorEngine_a3ab6498e1a642e2ba1ca69214412b16.Execute() in D:\dynamicweb.net\Solutions\Zington\ote.cloud.dynamicweb-cms.com\files\Templates\Designs\Swift\Navigation\BreadcrumbNavigation.cshtml:line 8
   at RazorEngine.Templating.TemplateBase.RazorEngine.Templating.ITemplate.Run(ExecuteContext context, TextWriter reader)
   at RazorEngine.Templating.RazorEngineService.RunCompile(ITemplateKey key, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineServiceExtensions.<>c__DisplayClass16_0.<RunCompile>b__0(TextWriter writer)
   at RazorEngine.Templating.RazorEngineServiceExtensions.WithWriter(Action`1 withWriter)
   at Dynamicweb.Rendering.RazorTemplateRenderingProvider.Render(Template template)
   at Dynamicweb.Rendering.TemplateRenderingService.Render(Template template)
   at Dynamicweb.Rendering.Template.RenderRazorTemplate()


  1     @inherits Dynamicweb.Rendering.ViewModelTemplate<Dynamicweb.Frontend.Navigation.NavigationTreeViewModel>
  2     
  3     @if (!Pageview.IsVisualEditorMode)
  4     {
  5     	string menuId = Model.Parameters.ContainsKey("menu-id") ? $"menu_{Model.Parameters["menu-id"].ToString().ToLower()}" : string.Empty;
  6     
  7     	<ol class="breadcrumb small mb-0 @menuId">
  8             @{@RenderNodes(Model.Nodes)}
  9     	</ol>
 10     }
 11     else if (Model.Nodes.Count() < 2)
 12     {
 13     	<div class="alert alert-dark m-0" role="alert">
 14     		<span>@Translate("Breadcrumb navigation: The navigation will be shown here, if any")</span>
 15     	</div>
 16     }
 17     
 18     @helper RenderNodes(IEnumerable<Dynamicweb.Frontend.Navigation.NavigationTreeNodeViewModel> nodes)
 19     {
 20     	foreach (var node in nodes)
 21     	{
 22     		if (node.ShowInBreadcrumb)
 23             {
 24                 if (!string.IsNullOrEmpty(node.Link))
 25                 {
 26                     <li class="breadcrumb-item">
 27                         <a href="@node.Link">
 28                             @node.Name
 29                         </a>
 30                     </li>
 31                 }
 32                 else
 33                 {
 34                     <li class="breadcrumb-item">
 35                         @node.Name
 36                     </li>
 37                 }
 38     
 39             }
 40     
 41     		{@RenderNodes(node.Nodes)}
 42     	}
 43     }
 44