Exporting then Importing custom field error

[bcc]

I added a field custom fields in the product. Trying to see how I can use Dataport to maintain the product (I'm using the 7.0.3 beta dataport). I first export the product, then turn around to import it back. I got the following error.
Not sure why I got these errors as I'm just importing what is exported.
Any suggestion how I can debug this problem?
Thanks!


Server Log:-


Importing 2 Products
Importing 19 ProductCustomFields

Object reference not set to an instance of an object.
ImportOrUpdate unsuccessful for Product
ProductId = 46
Name = Adagio from the "Toccata in C Major" for Organ
Error message: Object reference not set to an instance of an object.

at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations, String csvFields)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, ImportObjectChildsAndAssociations importObjectChildsAndAssociations)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportProductCustomFields(ProductCustomField[] arrImportObjects, Int32 parentId)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.<ImportProducts>b__38(Object& acObject, Object schemaObject)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations, String csvFields)

Base Exception: Object reference not set to an instance of an object.
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations, String csvFields)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, ImportObjectChildsAndAssociations importObjectChildsAndAssociations)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportProductCustomFields(ProductCustomField[] arrImportObjects, Int32 parentId)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.<ImportProducts>b__38(Object& acObject, Object schemaObject)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations, String csvFields)
Importing 19 ProductCustomFields

Object reference not set to an instance of an object.
ImportOrUpdate unsuccessful for Product
ProductId = 47
Name = Folk Songs of America and the British Isles
Error message: Object reference not set to an instance of an object.

at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations, String csvFields)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, ImportObjectChildsAndAssociations importObjectChildsAndAssociations)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportProductCustomFields(ProductCustomField[] arrImportObjects, Int32 parentId)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.<ImportProducts>b__38(Object& acObject, Object schemaObject)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations, String csvFields)

Base Exception: Object reference not set to an instance of an object.
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations, String csvFields)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, ImportObjectChildsAndAssociations importObjectChildsAndAssociations)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportProductCustomFields(ProductCustomField[] arrImportObjects, Int32 parentId)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.<ImportProducts>b__38(Object& acObject, Object schemaObject)
at CommerceBuilder.DataClient.Api.ObjectHandlers.ImportHandler.ImportChildObjectsArray(Array schemaObjectsArray, Type acType, String objName, String idFieldName, String displayNamePropertyName, Object parentId, TryLoadExistingObject tryLoadExistingObject, TranslateObjectAssociatedIds translateObjectAssociatedIds, SaveACObject saveACObject, ImportObjectChildsAndAssociations importObjectChildsAndAssociations, String csvFields)
0 Product(s) imported, 2 Product(s) updated.
Product(s) Import Complete...

[mazhar]

Thanks I am able to reproduce the case. You can track the progress here
http://bugs.ablecommerce.com/show_bug.cgi?id=8243