MarsSeed [1] filed a deletion request for ros2-foxy [2]: Unneeded package from 2021. This is the build automation package to create all versioned packages to be uploaded to the repo of the ROS 2 Foxy distribution. But that is EOL since 2023-06-20; their CI system won't ever build new versions. The last (frozen) version of the packages are available from their binary repo. Users are encouraged to migrate to a newer distribution. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros2-foxy/