MarsSeed [1] filed a deletion request for ros-noetic-rotors- description [2]: Fails to build, along with its unmaintained make dependency, AUR/ros- noetic-catkin. Obsolete, unused orphan package from 2020. Not compatible with Arch Linux, only with the EOL Ubuntu 20.04 LTS. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-noetic-rotors-description/