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 3.00 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
          altgr-ergo.1.01 base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base camlp-streams.5.0.1 camlzip.1.11
          cmdliner.1.2.0 conf-autoconf.0.1 conf-gmp.4 conf-gnomecanvas.2
          conf-gtk2.1 conf-gtksourceview.2 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 lablgtk.2.18.13
          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 ocamlgraph.2.1.0 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
- frama-c -> frama-c.13.1
    why 2.37 requires = 13.1
- frama-c-base -> (problem)
    frama-c 13.1 requires = 13.1
    Rejected candidates:
      frama-c-base.15.0: Incompatible with restriction: = 13.1
      frama-c-base.14.0: Incompatible with restriction: = 13.1
      frama-c-base.13.1: Requires ocaml >= 4.00.1 & <> 4.02.0 & <> 4.02.2 & < 4.04.0
      frama-c-base.12.1: Incompatible with restriction: = 13.1
      frama-c-base.11.0: Incompatible with restriction: = 13.1
- 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~
- why -> why.2.37
    User requested = 2.37
- why3 -> why3.0.87.3
    why 2.37 requires >= 0.86.1 & <= 0.87.3
- why3-base -> (problem)
    why3 0.87.3 requires = 0.87.3
    Rejected candidates:
      why3-base.0.88.3: Incompatible with restriction: = 0.87.3
      why3-base.0.88.2: Incompatible with restriction: = 0.87.3
      why3-base.0.88.1: Incompatible with restriction: = 0.87.3
      why3-base.0.88.0: Incompatible with restriction: = 0.87.3
      why3-base.0.87.3: Requires ocaml >= 4.01.0 & < 4.06.0
      ...