acxz [1] filed a deletion request for ros-melodic-libviso2 [2]: This package is not part of the ros melodic distribution: http://wiki.ros.org/libviso2 and as such can be deleted. [1] https://aur.archlinux.org/account/acxz/ [2] https://aur.archlinux.org/pkgbase/ros-melodic-libviso2/