Linux:Izpack Installer could run as console but missing console impl of FinishPanel

Linux:Izpack Installer could run as console but missing console impl of FinishPanel

SEVERE: com.izforge.izpack.api.exception.IzPackException: Console implementation not found for panel: net.jthink.izpack.panels.JthinkFinishPanel

i.e the standard impl can instal on headless now, except for the custom panel I created needs a a console (non-gui) equivalent.