Package opam-core

Failed to find a solution:

no platform:
2024-01-29 15:01.02 [INFO] Solving for ocaml-base-compiler, ocaml,
                           opam-core using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 15:01.07 [INFO] base: eliminated all possibilities in 2.10 s

2024-01-29 15:01.07 [INFO] = base =

2024-01-29 15:01.07 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base cppo.1.6.9 jbuilder.transition
          ocaml-options-vanilla.1 ocamlgraph.2.1.0 re.1.11.0 seq.base
          stdlib-shims.0.3.0 opam-core&ocaml&ocaml-base-compiler ocaml
          base-domains ocaml-base-compiler
- dune -> (problem)
    cppo 1.6.9 requires >= 1.10
    ocamlgraph 2.1.0 requires >= 2.0
    Rejected candidates:
      dune.3.13.0: Requires jbuilder not(= transition)
      dune.3.12.2: Requires jbuilder not(= transition)
      dune.3.12.1: Requires jbuilder not(= transition)
      dune.3.11.1: Requires jbuilder not(= transition)
      dune.3.11.0: Requires jbuilder not(= transition)
      ...
- ocaml -> (problem)
    User requested <= 5.1.0
    cppo 1.6.9 requires >= 4.02.3
    ocaml-base-compiler 5.1.1 requires = 5.1.1
    Rejected candidates:
      ocaml.5.1.0: Incompatible with restriction: = 5.1.1
      ocaml.5.0.1: Incompatible with restriction: = 5.1.1
      ocaml.5.0.0: Incompatible with restriction: = 5.1.1
      ocaml.4.14.2: Incompatible with restriction: = 5.1.1
      ocaml.4.14.1: Incompatible with restriction: = 5.1.1
      ...
- ocaml-base-compiler -> ocaml-base-compiler.5.1.1
    User requested >= 4.04.1
- opam-core -> opam-core.2.0.0~rc
    User requested = 2.0.0~rc