org.hl7.fhir.exceptions.DefinitionException: Found a slice at 'Observation.category' but there was no definition for the slicing
	at org.hl7.fhir.services.utilities.DefinitionNavigator.loadChildren(DefinitionNavigator.java:253)
	at org.hl7.fhir.services.utilities.DefinitionNavigator.children(DefinitionNavigator.java:167)
	at org.hl7.fhir.services.comparison.StructureDefinitionComparer.compareDiffChildren(StructureDefinitionComparer.java:567)
	at org.hl7.fhir.services.comparison.StructureDefinitionComparer.compareDiff(StructureDefinitionComparer.java:471)
	at org.hl7.fhir.services.comparison.StructureDefinitionComparer.compare(StructureDefinitionComparer.java:167)
	at org.hl7.fhir.services.comparison.ComparisonSession.compare(ComparisonSession.java:93)
	at org.hl7.fhir.igtools.publisher.comparators.IpsComparator.finishChecks(IpsComparator.java:236)
	at org.hl7.fhir.igtools.publisher.PublisherProcessor.checkConformanceResources(PublisherProcessor.java:1523)
	at org.hl7.fhir.igtools.publisher.PublisherProcessor.loadConformance2(PublisherProcessor.java:109)
	at org.hl7.fhir.igtools.publisher.Publisher.createIg(Publisher.java:453)
	at org.hl7.fhir.igtools.publisher.Publisher.execute(Publisher.java:232)
	at org.hl7.fhir.igtools.publisher.Publisher.main(Publisher.java:1688)