PR: NullReferenceException when trying to export curtain system with base quantities

andydandy74 commented 7 months ago

Problem Description

When trying to export a curtain system with export seetings to include base quantities the addin throws a NullreferenceException. The file is still exported, though.

Journal snippet

  'C 05-Feb-2024 21:19:06.739;   1:< IFC error: Exporting element "AA_337_AW-FAS_PfostenRiegel_100.0 x 200.0",2779 - System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.
  '   bei Revit.IFC.Export.Exporter.PropertySet.Calculators.HeightCalculator.Calculate(ExporterIFC exporterIFC, IFCExportBodyParams extrusionCreationData, Element element, ElementType elementType, EntryMap entryMap)
  '   bei Revit.IFC.Export.Exporter.PropertySet.QuantityEntryMap.ProcessEntry(IFCFile file, ExporterIFC exporterIFC, IFCExportBodyParams extrusionCreationData, Element element, ElementType elementType, QuantityEntry parentEntry)
  '   bei Revit.IFC.Export.Exporter.PropertySet.QuantityEntry.ProcessEntry(IFCFile file, ExporterIFC exporterIFC, IFCExportBodyParams extrusionCreationData, Element element, ElementType elementType)
  '   bei Revit.IFC.Export.Exporter.PropertySet.QuantityDescription.ProcessEntries(IFCFile file, ExporterIFC exporterIFC, IFCExportBodyParams ifcParams, Element elementToUse, ElementType elemTypeToUse)
  '   bei Revit.IFC.Export.Utility.ExporterUtil.ExportElementQuantities(ExporterIFC exporterIFC, Element element, ProductWrapper productWrapper)
  '   bei Revit.IFC.Export.Utility.ExporterUtil.ExportRelatedProperties(ExporterIFC exporterIFC, Element element, ProductWrapper productWrapper)
  '   bei Revit.IFC.Export.Exporter.Exporter.ExportElement(ExporterIFC exporterIFC, Element element)

Steps to reproduce

Open the model (https://github.com/andydandy74/MyIssues/raw/master/RevitIFC737/155_IFC_CurtainsystemException.rvt)
In the IFC export dialog make sure that "Base quantities" is unchecked
Export and observe there is no issue
Export again, this time with "Base quantities" checked and notice the warning.

Revit Version

2024.2.0

IFC for Revit Addon Version

24.2.0

Windows Version

10 22H2

AngelVelezSosa commented 7 months ago

We have identified the issue and will try to include a fix in a future update.

andydandy74 commented 4 weeks ago

This looks fixed in 24.2.20 - thanks!

Autodesk / revit-ifc