Publisher Error while trying to parse UUID

Hi there, New to FHIR.

Long story short, trying to validate Patient resource where one of it’s Identifiers is “RI” (Resource Identifier), and the value of it is a UUID (128 bits [8 chars]-[4 chars]-[4 chars]-[4 chars]-[12 chars] )

The IG publisher throws a validation exception - java.lang.NumberFormatException: for input string: "-"
assuming the UUID is an Integer Type, and the ‘dash’ separator causes that exception.

Is it possible to validate the UUID?

Thanks in advance.

what’s the stack? I don’t know why it would be trying to treat it as a number. Alternatively, provide a full example and your command line parameters