rook

Checksum error An error occurred while updating the package checksum.

git: could not find requested reference
  reference: main
  repo: jostgrant/langrook.git
  context...:
   /home/pkgserver/racket/collects/net/git-checkout.rkt:405:0: select-commits
   /home/pkgserver/racket/collects/net/git-checkout.rkt:74:8
   /home/pkgserver/racket/collects/net/git-checkout.rkt:55:2: retry-loop
   /home/pkgserver/racket/collects/pkg/private/stage.rkt:800:9
   /home/pkgserver/racket-pkg-website/src/pkg-index/update.rkt:40:2
   /home/pkgserver/racket-pkg-website/src/pkg-index/update.rkt:23:0: update-checksums
   /home/pkgserver/racket-pkg-website/src/pkg-index/update.rkt:192:0: do-update!
   /home/pkgserver/racket-pkg-website/src/pkg-index/common.rkt:157:0: run!
   /home/pkgserver/racket-pkg-website/src/pkg-index/update.rkt:207:0: run-update!