[Solved] V7 software issue on Ubuntu

[retiredfeline]

If you had some old v5 configuration files hanging around, it might be this issue, with the fix:

[SOLVED] 7.0.2 Cant open schematic

Some people have experienced issues where the old personal config files from v5 are present. They are located in ~/.config/kicad on Linux and the equivalent directory (don’t know it off the top of my head) on Windows. Move those out of the way, then run KiCad v7 again and it will give you a fresh start.

It’s been confirmed as an issue by a dev.