Package core_kernel

Failed to find a solution:

no platform:
2024-01-29 14:56.18 [INFO] Solving for ocaml-base-compiler, ocaml,
                           core_kernel using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 14:56.24 [INFO] base: eliminated all possibilities in 2.89 s

2024-01-29 14:56.24 [INFO] = base =

2024-01-29 14:56.24 [INFO] Can't find all required versions.
Selected: base-ocamlbuild.base camlp4.4.02.0-1modular-implicits conf-which.1
          enumerate.111.08.00 ocaml-config.3 ocamlbuild.0 ocamlfind.1.9.6
          ounit.2.2.7 core_kernel&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler
- bin_prot -> bin_prot.111.03.00
    core_kernel 111.08.00 requires = 111.03.00
- comparelib -> comparelib.109.60.00
    core_kernel 111.08.00 requires = 109.60.00
- core_kernel -> core_kernel.111.08.00
    User requested = 111.08.00
- fieldslib -> fieldslib.109.20.03
    core_kernel 111.08.00 requires >= 109.20.00 & <= 109.20.03
- herelib -> herelib.109.35.02
    core_kernel 111.08.00 requires >= 109.35.00 & <= 109.35.02
- ocaml -> ocaml.4.02.0
    User requested <= 5.1.0
    base-ocamlbuild base requires >= 3.10 & < 4.03
    core_kernel 111.08.00 requires >= 4.00.1 & < 4.02.1
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.1.1: Requires ocaml = 5.1.1
      ocaml-base-compiler.5.1.1~rc1: Requires ocaml = 5.1.1
      ocaml-base-compiler.5.1.0: Requires ocaml = 5.1.0
      ocaml-base-compiler.5.1.0~rc3: Requires ocaml = 5.1.0
      ocaml-base-compiler.5.1.0~rc2: Requires ocaml = 5.1.0
      ...
- ocaml-variants -> (problem)
    camlp4 4.02.0-1modular-implicits requires = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
    Rejected candidates:
      ocaml-variants.5.3.0+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.2.0+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.2+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.1+tsan: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.1+options: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ...
- ounit2 -> (problem)
    ounit 2.2.7 requires = 2.2.7
    Rejected candidates:
      ounit2.2.2.7: Requires ocaml >= 4.04.0
      ounit2.2.2.6: Incompatible with restriction: = 2.2.7
      ounit2.2.2.5: Incompatible with restriction: = 2.2.7
      ounit2.2.2.4: Incompatible with restriction: = 2.2.7
      ounit2.2.2.3: Incompatible with restriction: = 2.2.7
      ...
- pa_bench -> pa_bench.109.55.02
    core_kernel 111.08.00 requires >= 109.55.00 & <= 109.55.02
- pa_ounit -> pa_ounit.109.53.02
    core_kernel 111.08.00 requires >= 109.53.00 & <= 109.53.02
- pa_test -> pa_test.111.08.00
    core_kernel 111.08.00 requires = 111.08.00
- pipebang -> pipebang.110.01.00
    core_kernel 111.08.00 requires = 110.01.00
- sexplib -> (problem)
    core_kernel 111.08.00 requires = 111.03.00
    Rejected candidates:
      sexplib.v0.16.0: Incompatible with restriction: = 111.03.00
      sexplib.v0.15.1: Incompatible with restriction: = 111.03.00
      sexplib.v0.15.0: Incompatible with restriction: = 111.03.00
      sexplib.v0.14.0: Incompatible with restriction: = 111.03.00
      sexplib.v0.13.0: Incompatible with restriction: = 111.03.00
      ...
- type_conv -> type_conv.111.13.00
    bin_prot 111.03.00 requires >= 109.53.00 & <= 111.13.00
- typerep -> typerep.111.06.00
    core_kernel 111.08.00 requires = 111.06.00
- variantslib -> variantslib.109.15.03
    core_kernel 111.08.00 requires >= 109.15.00 & <= 109.15.03