ubuntu version 20.04 is no longer supported. The minimum boost version used for freecad is now 1.74 (ubuntu 22.04) https://launchpad.net/ubuntu/jammy/+package/libboost-system-dev
ubuntu version 20.04 is no longer supported. The minimum boost version used for freecad is now 1.74 (ubuntu 22.04) https://launchpad.net/ubuntu/jammy/+package/libboost-system-dev