org.hl7.fhir.exceptions.DefinitionException: Found a slice at 'Extension.valueUri' but there was no definition for the slicing
	at org.hl7.fhir.r5.utils.DefinitionNavigator.loadChildren(DefinitionNavigator.java:227)
	at org.hl7.fhir.r5.utils.DefinitionNavigator.children(DefinitionNavigator.java:164)
	at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.compareDiffChildren(StructureDefinitionComparer.java:570)
	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.PreviousVersionComparator.finishChecks(PreviousVersionComparator.java:262)
	at org.hl7.fhir.igtools.publisher.Publisher.checkConformanceResources(Publisher.java:6571)
	at org.hl7.fhir.igtools.publisher.Publisher.loadConformance2(Publisher.java:6377)
	at org.hl7.fhir.igtools.publisher.Publisher.createIg(Publisher.java:1224)
	at org.hl7.fhir.igtools.publisher.Publisher.execute(Publisher.java:1083)
	at org.hl7.fhir.igtools.publisher.Publisher.main(Publisher.java:15393)