Issue using older US Core IGs

[jasonhalljax]

Synthea runs fine with these default parameters, of course:

exporter.fhir.export = true
exporter.fhir_stu3.export = false
exporter.fhir_dstu2.export = false
exporter.fhir.use_shr_extensions = false
exporter.fhir.use_us_core_ig = true
exporter.fhir.us_core_version = 5.0.1
exporter.fhir.transaction_bundle = true

However, when I go back on the US Core IG version number to 3.1.1 (or anything older than 4.0.0), like this:

exporter.fhir.us_core_version = 3.1.1

the run is not successful (below). Are these older IGs not supported? Thanks.

java.lang.NullPointerException
        at org.mitre.synthea.export.FhirR4.observation(FhirR4.java:1873)
        at org.mitre.synthea.export.FhirR4.convertToFHIR(FhirR4.java:432)
        at org.mitre.synthea.export.FhirR4.convertToFHIRJson(FhirR4.java:527)
        at org.mitre.synthea.export.Exporter.exportRecord(Exporter.java:240)
        at org.mitre.synthea.export.Exporter.export(Exporter.java:159)
        at org.mitre.synthea.engine.Generator.generatePerson(Generator.java:540)
        at org.mitre.synthea.engine.Generator.lambda$run$3(Generator.java:382)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:834)

[jawalonoski]

Only US Core v4 and v5 are currently supported, 4.0.0 and 5.0.1 respectively (using FHIR R4 only).

[jasonhalljax]

Thanks for replying. Interesting - I though 3.1.1 was the version currently in use, with US Core 4 was still in draft for a few more months, and v5 was projected for 2025-ish.

[jawalonoski]

US Core 3.1.1 was removed from Synthea in April 2022 with this pull request: #1036

If you need that functionality, you can either go back prior to commit 114a3eb, for example 012e293.

Unfortunately, we did not make an official release just before upgrading to 4.0.0.

[jasonhalljax]

Thank you