How to generate xmi via command line?

Question

I have am trying to convert and plantUML ERD document to xmi/aml and, as per the instructions on the

• https://plantuml-documentation.readthedocs.io/en/latest/command_line_reference.html
• https://plantuml.com/xmi

I ran the following command:

java -jar ~/plantuml.jar erd-model.puml -txmi  -o conv_tests

and get the following exception:

Exception in thread "main" java.lang.UnsupportedOperationException: XMI_STANDARD
    at net.atmp.ImageBuilder.createUGraphic(ImageBuilder.java:469)
    at net.atmp.ImageBuilder.writeImageInternal(ImageBuilder.java:296)
    at net.atmp.ImageBuilder.write(ImageBuilder.java:256)
    at net.sourceforge.plantuml.UmlDiagram.exportDiagramError(UmlDiagram.java:204)
    at net.sourceforge.plantuml.UmlDiagram.exportDiagramError(UmlDiagram.java:160)
    at net.sourceforge.plantuml.UmlDiagram.exportDiagramNow(UmlDiagram.java:153)
    at net.sourceforge.plantuml.AbstractPSystem.exportDiagram(AbstractPSystem.java:198)
    at net.sourceforge.plantuml.PSystemUtils.exportDiagramsDefault(PSystemUtils.java:207)
    at net.sourceforge.plantuml.PSystemUtils.exportDiagrams(PSystemUtils.java:96)
    at net.sourceforge.plantuml.SourceFileReaderAbstract.getGeneratedImages(SourceFileReaderAbstract.java:190)
    at net.sourceforge.plantuml.Run.manageFileInternal(Run.java:510)
    at net.sourceforge.plantuml.Run.processArgs(Run.java:404)
    at net.sourceforge.plantuml.Run.manageAllFiles(Run.java:371)
    at net.sourceforge.plantuml.Run.main(Run.java:206)

Am I missing something?

Comments

- which version of plantuml did you use?

- what is in your erd-model.puml?

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I actually logged the bug on the project's issues page but to answer your question,
It didn't matter what was in my ERD, nothing worked.
I was using version plantuml-1.2023.10.
I also see that another person has come across the same bug/issue.