Input sources in gnome control center empty

hi
i use archlinux and gnome, recently i installed the packages ibus and ibus-m17n to type in indic languages, but the Settings > Keyboard > Input Sources > Add Input Source is empty
i tried other packages like ibus-unikey but that doesn’t work either
i also tried running this command but to no avail

$ gsettings set org.gnome.desktop.input-sources show-all-sources true