thanks for the SUPER-QUICK reply.
We’ve typed in the following code from the tutorial you mention above:
/opt/retropie/emulators/RetroArch/installdir/bin sudo ./retroarch-joyconfig -j 1 >> /opt/retropie/configs/all/retroarch.cfg
But we get the following error:
Couldn’t open joystick #1.
Just so you know, I’m a very old motor mechanic, so my understanding of computers is very limited & my son is just starting out on his journey. So we are very appreciative of any help.