Sequence contains more than one matching element : Key=777103d0-bbe2-4e19-bab1-667e4c5c2560;RelatedProductId=e74cc803-d081-4c11-b58d-885b09afe1ab
Sequence contains more than one matching element : Key=777103d0-bbe2-4e19-bab1-667e4c5c2560;RelatedProductId=e74cc803-d081-4c11-b58d-885b09afe1ab
at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate)
at Storefronts.PortalEngine.Data.Repositories.Product.ProductRelationshipRepository.Populate(PartnerId partnerId, DataSet dataSet) in c:\builds\pearsontechnology\gpt\stor\PortalEngine\InformIT.NET\Storefronts.PortalEngine.Data\Repositories\Product\ProductRelationshipRepository.cs:line 416