MarsSeed [1] filed a deletion request for ros-noetic-imu- complementary-filter [2]: Dependency chain fails to build, and has been unmaintained on AUR for 2+ years. See e.g. AUR/ros-noetic-tf. [a] This package is an orphan and does not have reverse dependencies. Votes 0, popularity 0.000000. Only the non-EOL "ros2-*" AUR packages are compatible with Arch Linux. ROS1 is based on Python 3.9, Qt 5.12 and the EOL Ubuntu 20.04. [a]: https://aur.archlinux.org/pkgbase/ros-noetic-tf [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-noetic-imu-complementary-filter/