Systemless [1] filed a deletion request for forge-mantle-1.14.4-bin [2]: This is a library for another minecraft mod (that this pkgbuild doesn't depend on for some reason) The maintainer is gone. It's out of date. And the package is pretty much useless because the average forge user would install their mods themselves. [1] https://aur.archlinux.org/account/Systemless/ [2] https://aur.archlinux.org/pkgbase/forge-mantle-1.14.4-bin/