turbocat2001 [1] filed a deletion request for grive [2]: An error in the assembly of the package. The maintainer does not fix the package despite numerous complaints. I think you need to delete it since there is a working git version.
[1] https://aur.archlinux.org/account/turbocat2001/ [2] https://aur.archlinux.org/pkgbase/grive/
