MarsSeed [1] filed a deletion request for ros-noetic-costmap-converter [2]: EOL, unused. (Last ROS release was in 2020.) Reverse dependency AUR/ros-noetic-teb-local-planner has been broken for the past 2 years (see deletion request PRQ#71972). ROS1 (Noetic) is no longer compatible with Arch Linux, only with Python 3.9, Qt 5.12 and the freshly EOL Ubuntu 20.04 LTS. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-noetic-costmap-converter/