MarsSeed [1] filed a deletion request for ros-melodic-ros-environment [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-ros-environment/
