I’ve seen relatively little on Google about this error - mostly things from a while ago before some unnamed package supported the --dev-pkg flag. Anyone know how to resolve it?
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><> 🐫
[ERROR] The compilation of fmt failed at "/Users/xitrium/.opam/opam-init/hooks/sandbox.sh build
ocaml pkg/pkg.ml build --dev-pkg false --with-base-unix true --with-cmdliner true".
#=== ERROR while compiling fmt.0.8.6 ==========================================#
# context 2.0.1 | macos/x86_64 | ocaml-base-compiler.4.07.1 | https://opam.ocaml.org/#33220f75
# path ~/.opam/4.07.1/.opam-switch/build/fmt.0.8.6
# command ~/.opam/opam-init/hooks/sandbox.sh build ocaml pkg/pkg.ml build --dev-pkg false --with-base-unix true --with-cmdliner true
# exit-code 1
# env-file ~/.opam/log/fmt-28608-ffb3fd.env
# output-file ~/.opam/log/fmt-28608-ffb3fd.out
### output ###
# pkg.ml: [ERROR] key --dev-pkg: Unknown key.
opam version 2.0.1