MarsSeed [1] filed a deletion request for ros-melodic-openslam- gmapping [2]: Dead. Unbuildable: tries to execute nonexistent script. Also ROS Melodic is EOL since mid-2023. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-melodic-openslam-gmapping/