keep on getting "Package installation failed. User "guest" is not a member of the "dba" group."

[JoernT]

What happened?

I have an existing .existdb.json which is configured with user 'admin' and empty pass (for local development) but xst keeps on complaining : "Package installation failed. User "guest" is not a member of the "dba" group."

System Information

Build: eXist-6.2.0 (c8fa4958b6d4a50bd0cba7f3e76a150226414187)
Java: 1.8.0_382 (Azul Systems, Inc.)
OS: Mac OS X 14.2.1 (aarch64)

(should output xst version too). It is:
1.6.1

Relevant shell output

Package installation failed. User "guest" is not a member of the "dba" group.