Package core_extended

Failed to find a solution:

no platform:
2024-09-12 08:05.21 [INFO] Solving for ocaml-base-compiler, ocaml,
                           core_extended using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 08:05.28 [INFO] base: eliminated all possibilities in 3.11 s

2024-09-12 08:05.28 [INFO] = base =

2024-09-12 08:05.28 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base camlp-streams.5.0.1 camlp4.5.1
          conf-libpcre.1 conf-pkg-config.3 csexp.1.5.2 dune.3.16.0
          dune-configurator.3.16.0 host-arch-x86_64.1 ocaml-config.3
          ocaml-options-vanilla.1 ocamlbuild.0.15.0 ocamlfind.1.9.6
          pcre.7.5.0 core_extended&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler system-mingw ocaml
          base-domains ocaml ocaml-base-compiler
- core -> (problem)
    core_extended 108.07.00 requires = 108.07.00
    Rejected candidates:
      core.v0.17.1: Incompatible with restriction: = 108.07.00
      core.v0.17.0: Incompatible with restriction: = 108.07.00
      core.v0.16.2: Incompatible with restriction: = 108.07.00
      core.v0.16.1: Incompatible with restriction: = 108.07.00
      core.v0.16.0: Requires ocaml >= 4.14.0 & < 5.1~
      ...
- core_extended -> core_extended.108.07.00
    User requested = 108.07.00
- ocaml -> ocaml.5.1.1
    User requested <= 5.1.1
- ocaml-base-compiler -> ocaml-base-compiler.5.1.1
    User requested >= 4.04.1
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires >= 5.1.1~ & < 5.1.2~
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied