I have ocaml-utop installed in an environment. When I run utop from the shell it returns this rather unamusing error message.
brettg@guixsd ~ [env]$ utop Fatal error: exception Not_found There is a reference to this error on github, here https://github.com/ocaml-community/utop/issues/224 I tried patching this myself but I did not get far. Brett Gilio