I decided to purge and reinstall Kicad 5 and to restore my ~/.config/kicad from backup instead. This gave me back my Kicad 4 footprints, but not the libraries. In which file are the symbols libraries defined?
I couldn’t follow the tutorial since I DON’T KNOW where my Kicad 4 symbols are on my disk – after upgrading my Kicad 4 packages from to 5, the Kicad 4 packages are no longer installed, but I was using Kicad 5 with Kicad 4 symbols and footprints.
I finally installed Kicad 4 libraries. Of course, the “official” ones aren’t the ones I created the project with, so I’m not sure if this is of any use at all.
I guess that means I throw everything away and start over in Kicad 5. Great job!
No need to throw everything away. Just make sure you have the cache lib and you can use a project with old symbols even if you no longer have them on the system. They will just be rescued.