unoidl-write usage help

[Scott Robinson]

Using Fedora 37, LibreOffice 7.4.3.2
Using $sdk/examples/DevelopersGuide/Components/JavaComponent

Steps I take:

Copy JavaComponet to home directory
cd ~/JavaComponent
export PATH=/usr/lib64/libreoffice/sdk/bin:/usr/lib64/libreoffice/program:/usr/bin
export LD_LIBRARY_PATH=/usr/lib64/libreoffice/program:/usr/bin
export unoTypes=/usr/lib64/libreoffice/program/types.rdb
export offTypes=/usr/lib64/libreoffice/program/types/offapi.rdb
unoidl-write $unoTypes $offTypes com/sun/star/test/XSomethinA.idl

I get nothing; no output, no error message. Please advise.

Thanks