HER0_01 [1] filed a deletion request for hdx-normalmaps-512-git [2]:

This was required to have normal maps with hdx-512-git, but those are now included and this no longer works (as the source repo was deleted).

[1] https://aur.archlinux.org/account/HER0_01/ [2] https://aur.archlinux.org/pkgbase/hdx-normalmaps-512-git/