Package why

Failed to find a solution:

no platform:
2024-01-29 15:07.42 [INFO] Solving for ocaml-base-compiler, ocaml,
                           why using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 15:07.49 [INFO] base: eliminated all possibilities in 3.07 s

2024-01-29 15:07.49 [INFO] = base =

2024-01-29 15:07.49 [INFO] Can't find all required versions.
Selected: alt-ergo.2.5.2 alt-ergo-lib.2.5.2 alt-ergo-parsers.2.5.2
          base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base camlzip.1.11 cmdliner.1.2.0
          conf-autoconf.0.1 conf-gmp.4 conf-pkg-config.3 conf-which.1
          conf-zlib.1 csexp.1.5.2 dolmen.0.9 dolmen_loop.0.9 dolmen_type.0.9
          dune.3.13.0 dune-build-info.3.13.0 dune-private-libs.3.13.0
          dune-site.3.13.0 dyn.3.13.0 fmt.0.9.0 gen.1.1 logs.0.7.0
          menhir.20231231 menhirCST.20231231 menhirLib.20231231
          menhirSdk.20231231 num.1.5 ocaml-compiler-libs.v0.12.4
          ocaml-config.3 ocaml-options-vanilla.1 ocamlbuild.0.14.3
          ocamlfind.1.9.6 ocplib-simplex.0.5 ordering.3.13.0 pp.1.2.0
          pp_loc.2.1.0 ppx_blob.0.7.2 ppx_derivers.1.2.1 ppxlib.0.31.0
          psmt2-frontend.0.4.0 seq.base sexplib0.v0.16.0 spelll.0.4
          stdlib-shims.0.3.0 stdune.3.13.0 topkg.1.0.7 uutf.1.0.3 zarith.1.13
          why&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler ocaml base-domains ocaml ocaml-base-compiler
- coq -> (problem)
    why 2.33 requires >= 8.4pl1 & <= 8.4.5
    Rejected candidates:
      coq.8.19.0: Incompatible with restriction: >= 8.4pl1 & <= 8.4.5
      coq.8.18.0: Incompatible with restriction: >= 8.4pl1 & <= 8.4.5
      coq.8.17.1: Incompatible with restriction: >= 8.4pl1 & <= 8.4.5
      coq.8.17.0: Incompatible with restriction: >= 8.4pl1 & <= 8.4.5
      coq.8.16.1: Requires base-nnp conflict with all versions
      ...
- frama-c -> (problem)
    why 2.33 requires >= 9.0 & <= 9.1
    Rejected candidates:
      frama-c.28.0: Incompatible with restriction: >= 9.0 & <= 9.1
      frama-c.28.0~beta: Incompatible with restriction: >= 9.0 & <= 9.1
      frama-c.27.1: Incompatible with restriction: >= 9.0 & <= 9.1
      frama-c.27.0: Incompatible with restriction: >= 9.0 & <= 9.1
      frama-c.27.0~beta: Incompatible with restriction: >= 9.0 & <= 9.1
      ...
- lablgtk -> (problem)
    why 2.33 requires <= 2.16.0
    Rejected candidates:
      lablgtk.2.18.13: Incompatible with restriction: <= 2.16.0
      lablgtk.2.18.12: Requires ocaml >= 4.06 & < 5.0.0
      lablgtk.2.18.11: Requires ocaml >= 4.05 & < 5.0.0
      lablgtk.2.18.10: Requires ocaml >= 4.05 & < 4.09
      lablgtk.2.18.9: Requires ocaml >= 4.05 & < 4.09
      ...
- ocaml -> ocaml.5.1.0
    User requested <= 5.1.0
- ocaml-base-compiler -> ocaml-base-compiler.5.1.0
    User requested >= 4.04.1
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires >= 5.1.0~ & < 5.1.1~
- ocamlgraph -> (problem)
    why 2.33 requires >= 1.8.2 & <= 1.8.5
    Rejected candidates:
      ocamlgraph.2.1.0: Incompatible with restriction: >= 1.8.2 & <= 1.8.5
      ocamlgraph.2.0.0: Incompatible with restriction: >= 1.8.2 & <= 1.8.5
      ocamlgraph.1.8.8: Requires ocaml < 5.0
      ocamlgraph.1.8.7: Requires ocaml < 4.06.0
      ocamlgraph.1.8.6: Requires ocaml < 4.06.0
      ...
- why -> why.2.33
    User requested = 2.33
- why3 -> (problem)
    why 2.33 requires = 0.81
    Rejected candidates:
      why3.1.7.1: Incompatible with restriction: = 0.81
      why3.1.7.0: Incompatible with restriction: = 0.81
      why3.1.6.0: Incompatible with restriction: = 0.81
      why3.1.5.1: Incompatible with restriction: = 0.81
      why3.1.5.0: Incompatible with restriction: = 0.81
      ...