org.hl7.fhir.exceptions.DefinitionException: Found a slice at 'Observation.category' but there was no definition for the slicing
	at org.hl7.fhir.r5.utils.DefinitionNavigator.loadChildren(DefinitionNavigator.java:235)
	at org.hl7.fhir.r5.utils.DefinitionNavigator.children(DefinitionNavigator.java:166)
	at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.compareDiffChildren(StructureDefinitionComparer.java:571)
	at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.compareDiff(StructureDefinitionComparer.java:475)
	at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.compare(StructureDefinitionComparer.java:179)
	at org.hl7.fhir.r5.comparison.ComparisonSession.compare(ComparisonSession.java:107)
	at org.hl7.fhir.igtools.publisher.comparators.IpaComparator.finishChecks(IpaComparator.java:232)
	at org.hl7.fhir.igtools.publisher.Publisher.checkConformanceResources(Publisher.java:6620)
	at org.hl7.fhir.igtools.publisher.Publisher.loadConformance2(Publisher.java:6424)
	at org.hl7.fhir.igtools.publisher.Publisher.createIg(Publisher.java:1211)
	at org.hl7.fhir.igtools.publisher.Publisher.execute(Publisher.java:1070)
	at org.hl7.fhir.igtools.publisher.Publisher.main(Publisher.java:15669)
	at org.hl7.fhir.igtools.web.PublicationProcess.runBuild(PublicationProcess.java:1080)
	at org.hl7.fhir.igtools.web.PublicationProcess.doPublish(PublicationProcess.java:561)
	at org.hl7.fhir.igtools.web.PublicationProcess.publishInner2(PublicationProcess.java:469)
	at org.hl7.fhir.igtools.web.PublicationProcess.publishInner(PublicationProcess.java:286)
	at org.hl7.fhir.igtools.web.PublicationProcess.publish(PublicationProcess.java:146)
	at org.hl7.fhir.igtools.publisher.Publisher.main(Publisher.java:15417)