org.hl7.fhir.exceptions.DefinitionException: StructureDefinition is not for an profile - can't be compared (left: Identifier) at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.check(StructureDefinitionComparer.java:190) at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.compare(StructureDefinitionComparer.java:126) at org.hl7.fhir.r5.comparison.ComparisonSession.compare(ComparisonSession.java:104) at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.intersectTypes(StructureDefinitionComparer.java:984) at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.compareElements(StructureDefinitionComparer.java:274) at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.compareChildren(StructureDefinitionComparer.java:377) at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.compareElements(StructureDefinitionComparer.java:290) at org.hl7.fhir.r5.comparison.StructureDefinitionComparer.compare(StructureDefinitionComparer.java:170) at org.hl7.fhir.r5.comparison.ComparisonSession.compare(ComparisonSession.java:104) at org.hl7.fhir.igtools.publisher.comparators.PreviousVersionComparator.finishChecks(PreviousVersionComparator.java:261) at org.hl7.fhir.igtools.publisher.Publisher.checkConformanceResources(Publisher.java:5798) at org.hl7.fhir.igtools.publisher.Publisher.loadConformance(Publisher.java:5614) at org.hl7.fhir.igtools.publisher.Publisher.createIg(Publisher.java:1177) at org.hl7.fhir.igtools.publisher.Publisher.execute(Publisher.java:1016) at org.hl7.fhir.igtools.publisher.Publisher.main(Publisher.java:13019) at org.hl7.fhir.igtools.web.PublicationProcess.runBuild(PublicationProcess.java:899) at org.hl7.fhir.igtools.web.PublicationProcess.doPublish(PublicationProcess.java:476) at org.hl7.fhir.igtools.web.PublicationProcess.publishInner2(PublicationProcess.java:393) at org.hl7.fhir.igtools.web.PublicationProcess.publishInner(PublicationProcess.java:231) at org.hl7.fhir.igtools.web.PublicationProcess.publish(PublicationProcess.java:123) at org.hl7.fhir.igtools.publisher.Publisher.main(Publisher.java:12764)