Error loading products

Jesper

Vote:

Hi,

I'm investigating an error, that happens when he try to load a page with product data. A database rollback previously solved the issue, but now it's back.

base.RoutePartial(content, segmentContext);

And the exception:

[NullReferenceException: Object reference not set to an instance of an object.]
   EPiServer.Commerce.Catalog.Provider.MetaDataPropertyMapper.AssignMetaFieldValueToProperty(PropertyData property, Object metaFieldValue, MetaDataType metaDataType, String blockPropertyMetaFieldName) +1083
   EPiServer.Commerce.Catalog.Provider.Construction.CatalogPropertyLoader.AddMetaDataAttributePropertyValues(MetaObjectAccessor accessor, CatalogContentBase content) +1247
   EPiServer.Commerce.Catalog.Provider.Construction.CatalogPropertyLoader.LoadProperties(CatalogEntryRow entryRow, CatalogItemSeoRow seoRow, VariationRow variationRow, EntryContentBase content, MetaObjectAccessor metaObjectAccessor) +245
   EPiServer.Commerce.Catalog.Provider.Construction.EntryBuilder.ConstructEntries(CatalogEntryDto entryDto, IDictionary`2 versionsForUnpublishedContent, IList`1 entryNodeRelations, String language) +1565
   EPiServer.Commerce.Catalog.Provider.Construction.EntryBuilder.Create(IList`1 contentLinks, String language) +875
   EPiServer.Commerce.Catalog.Provider.CatalogContentLoader.ConstructContent(IList`1 contentLinks, Func`3 createContentFunc) +511
   EPiServer.Commerce.Catalog.Provider.CatalogContentLoader.LoadSpecificContentInstances(IList`1 contentLinks, String language) +607
   EPiServer.Commerce.Catalog.Provider.CatalogContentProvider.BatchLoad(IList`1 contentLinks, Func`2 dbLoader) +246
   EPiServer.Commerce.Catalog.Provider.CatalogContentProvider.LoadContents(IList`1 contentReferences, ILanguageSelector selector) +752
   EPiServer.Core.ContentProvider.GetContentBatch(IList`1 batch, ILanguageSelector selector, List`1& contents, Dictionary`2& contentMap) +127
   EPiServer.Core.ContentProvider.GetScatteredContents(IEnumerable`1 contentLinks, ILanguageSelector selector) +1019
   EPiServer.Core.Internal.ProviderPipelineImplementation.GetItems(ContentProvider provider, IList`1 contentLinks, LoaderOptions loaderOptions) +326
   EPiServer.Core.Internal.DefaultContentLoader.GetChildren(ContentReference contentLink, LoaderOptions loaderOptions, Int32 startIndex, Int32 maxRows) +1721
   EPiServer.Core.Internal.DefaultContentLoader.GetChildren(ContentReference contentLink, CultureInfo language) +196
   EPiServer.Commerce.Routing.HierarchicalCatalogPartialRouter.FindNextContentInSegmentPair(CatalogContentBase catalogContent, SegmentPair segmentPair, SegmentContext segmentContext, CultureInfo cultureInfo) +311
   EPiServer.Commerce.Routing.HierarchicalCatalogPartialRouter.GetCatalogContentRecursive(CatalogContentBase catalogContent, SegmentPair segmentPair, SegmentContext segmentContext, CultureInfo cultureInfo) +200
   EPiServer.Commerce.Routing.HierarchicalCatalogPartialRouter.RoutePartial(PageData content, SegmentContext segmentContext) +347
   Vertica.Pompdelux.Business.Infrastructure.Routing.CustomHierarchicalCatalogPartialRouter.RoutePartial(PageData content, SegmentContext segmentContext) in C:\Projects\POMPdeLUX\src\Business\Infrastructure\Routing\CustomHierarchicalCatalogPartialRouter.cs:64
   EPiServer.Web.Routing.Segments.Internal.PartialSegment.RouteDataMatch(SegmentContext context) +358
   System.Linq.Enumerable.All(IEnumerable`1 source, Func`2 predicate) +170
   EPiServer.Web.Routing.Internal.DefaultContentRoute.RouteSegmentContext(SegmentContext segmentContext) +16
   EPiServer.Web.Routing.Internal.DefaultContentRoute.GetRouteData(HttpContextBase httpContext) +470
   System.Web.Routing.RouteCollection.GetRouteData(HttpContextBase httpContext) +239
   EPiServer.Web.Routing.RouteCollectionExtensions.HandleRouteData(RouteCollection routes, HttpContextBase context) +30
   EPiServer.Global.DefaultDocumentHandling(Object sender, EventArgs e) +180
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +142
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +75
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +93

Any help is appreciated :)

#248828

Feb 18, 2021 10:23

Naveed Ul-Haq

Vote:

The "object reference" is a very generic error. Are you on DXP? Can you check Application Insight and check failed request and see telemetry. it will give you a hint of what the website is trying to get from the database.

if you are not on DXP then you can use Sql profiler.

#248870

Feb 19, 2021 12:35

Tommy Kihlstrøm

Vote:

I've experienced this exception from the same method in MetaDataPropertyMapper.AssignMetaFieldValueToProperty when I remove a property from a local block that has been used in product content. I suspect that the null reference happens because AssignMetaFieldValueToProperty cannot find the property to assign the value to. I'm running Commerce 14.

I would say this is a bug. Seems like it only happens for properties in a localblock used in a commerce type.

A workaround is to keep the property in code and add [Obsolete] and [Scafolding(false)] attributes to hide and stop using them.

#308824

Sep 21, 2023 7:59

Quan Mai

Vote:

I would suggest to contact support service for further assistance. You then can obtain the pdb files to see what metafield/property is causing error

#308871

Sep 22, 2023 6:31