MarsSeed [1] filed a deletion request for qtcreator-plugin- layoutsupport-git [2]: Cleanup of long-broken, long-abandoned, unused Qt Creator plugins that still depend on the obsolete 'qtcreator-src' package instead of the correct 'qtcreator-devel', available in extra repo. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/qtcreator-plugin-layoutsupport-git/