Error ProductListView.cshtml The given key was not present in the dictionary. at System.Collections.Generic.Dictionary`2.get_Item(TKey key) at System.Collections.ObjectModel.KeyedCollection`2.get_Item(TKey key) at TeaCommerce.Tests.PriceCalculators.CustomProductCalculator.CalculatePrice(String productIdentifier, Currency currency, VatRate vatRate) at TeaCommerce.Api.Web.TeaCommerceHelper.GetPrice(Int64 storeId, String productIdentifier) at TeaCommerce.Umbraco.Web.TC.GetPrice(Int64 storeId, String productIdentifier) at ASP._Page_Views_Partials_ProductListView_cshtml.Execute() in d:\web\holstsko.dk\www\Views\Partials\ProductListView.cshtml:line 26