I can't seem to reproduce any such build failure in Ubuntu 20.04 so please also update your system:
sudo apt update sudo apt full-upgrade The issue might have already been fixed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1866936 Title: kernel package linux-headers-5.4.0-4-amd64 is not supported To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1866936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
