scripts/jigsaw.sh does not work

I get the following error message from running scripts/jigsaw.sh:

loading properties from: /usr/src/packages/BUILD/Jigsaw/Jigsaw/config/server.props
Unable to launch http-server: org.w3c.jigsaw.http.httpd[initializeProperties]: [host] undefined.
Unable to launch admin-server: org.w3c.jigsaw.admin.AdminServer[initializeProperties]: [host] undefined.
*** FATAL Error:
No servers initialized !

Received on Monday, 18 October 2010 06:24:42 UTC