Error executing template "Designs/Swift/Navigation/Custom__ProductBreadcrumbNavigation.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_8d7492cb00fd47a1b9693a0e7ab089eb.<>c__DisplayClass0_0.<RenderNodes>b__0(TextWriter __razor_helper_writer) in F:\Domains\Sites\uat-ic.mydwsite.com\Files\Templates\Designs\Swift\Navigation\Custom__ProductBreadcrumbNavigation.cshtml:line 49
   at CompiledRazorTemplates.Dynamic.RazorEngine_8d7492cb00fd47a1b9693a0e7ab089eb.Execute() in F:\Domains\Sites\uat-ic.mydwsite.com\Files\Templates\Designs\Swift\Navigation\Custom__ProductBreadcrumbNavigation.cshtml:line 14
   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     @using System
  2     @using System.Collections.Generic
  3     @using System.Linq
  4     @inherits Dynamicweb.Rendering.ViewModelTemplate<Dynamicweb.Frontend.Navigation.NavigationTreeViewModel>
  5     
  6     @if (!Pageview.IsVisualEditorMode)
  7     {
  8     	var menuId = Model.Parameters.ContainsKey("menu-id") ? $"menu_{Model.Parameters["menu-id"].ToString().ToLower()}" : string.Empty;
  9     	var productPage = Model.Parameters.ContainsKey("product-page") ? Convert.ToInt32(Model.Parameters["product-page"]) : 0;
 10     	var page = productPage != 0 ? Dynamicweb.Content.Services.Pages.GetPage(productPage) : null;
 11     	var hasMainProductPage = page != null;
 12     	
 13     	<ol class="breadcrumb small mb-0 @menuId">
 14     		@{@RenderNodes(Model.Nodes, productPage, hasMainProductPage, page?.GetDisplayName())}
 15     	</ol>
 16     }
 17     else if (Model.Nodes.Count() < 2)
 18     {
 19     	<div class="alert alert-dark m-0" role="alert">
 20     		<span>@Translate("Breadcrumb navigation: The navigation will be shown here, if any")</span>
 21     	</div>
 22     }
 23     
 24     @helper RenderNodes(IEnumerable<Dynamicweb.Frontend.Navigation.NavigationTreeNodeViewModel> nodes, int pageId, bool hasMainProductPage, string pageName)
 25     {
 26     	foreach (var node in nodes)
 27     	{
 28     		if (node.Level > 2 && node.ShowInBreadcrumb && !hasMainProductPage && node.Name != pageName)
 29     		{
 30     			if (!string.IsNullOrEmpty(node.Link))
 31                 {
 32     	            var url = node.Nodes.Count() != 0 ? Dynamicweb.Frontend.SearchEngineFriendlyURLs.GetFriendlyUrl($"Default.aspx?ID={pageId}") + node.Link : node.Link;
 33     	            
 34                     <li class="breadcrumb-item">
 35     	                <a href="@url">
 36     		                @node.Name
 37     	                </a>
 38                     </li>
 39                 }
 40                 else
 41                 {
 42                     <li class="breadcrumb-item">
 43                         @node.Name
 44                     </li>
 45                 }
 46     
 47             }
 48     
 49     		{@RenderNodes(node.Nodes, pageId, false, pageName)}
 50     	}
 51     }
 52     
 53