MarsSeed [1] filed a deletion request for ros-noetic-rotors-control [2]: Fails to build. Upstream is not maintained since 2021 [a]; last release (current pkgver) is from 2018. [b] ROS1/Noetic packages are also broken on and not compatible with Arch Linux, and only work with the old runtimes of the EOL Ubuntu 20.04 LTS. [a]: https://github.com/ethz-asl/rotors_simulator [b]: https://github.com/ethz-asl/rotors_simulator/tags [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-noetic-rotors-control/