MarsSeed [1] filed a deletion request for ros-melodic-velodyne- simulator [2]: Unneeded orphan metapackage from 2021. Its related dependencies are also orphans from 2021 and are unbuildable due to BitBucket source repo being unavailable. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-melodic-velodyne-simulator/