MarsSeed [1] filed a deletion request for ros-noetic-octomap [2]: ROS Noetic is EOL and not generally compatible with Arch Linux, only with Python 3.9 and the freshly EOL Ubuntu 20.04.
This AUR package seems to be unused, and has not received upstream updates since 2022. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-noetic-octomap/
