I feel so stupid.... probably I unpacked the tarball with a wrong switch.... Game is starting now since I unpacked it the RIGHT way.... I think this topic can be deleted

config-path.cfg is an empty file on my machine. I changed nothing, just unpacked the tarball in my home directory...

So I downloaded factorio and unpacked it on my gentoo linux pc.
When I try to start the game it gives me the error message

0.000 Error Util.cpp:49: No such node (config-path)

Looks like I need to configure something before the game can start, but I can find no info about that subject.

Any help ...