public void VerifyShopProductExists(Guid shopProductGuid, ICloneableException <Exception> e) { var product = ShopProducts.FirstOrDefault(prod => prod.Guid.Equals(shopProductGuid)); if (product == null) { StackTrace stackTrace = new StackTrace(); var msg = string.Format(Resources.EntityNotFound, "product", shopProductGuid) + "In shop with Guid - {Guid}" + $" cant complete {stackTrace.GetFrame(1).GetMethod().Name}"; throw e.Clone(msg); } }