Package m17n

Failed to find a solution:

no platform:
2024-01-29 15:01.11 [INFO] Solving for ocaml-base-compiler, ocaml,
                           m17n using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 15:01.17 [INFO] base: eliminated all possibilities in 2.65 s

2024-01-29 15:01.17 [INFO] = base =

2024-01-29 15:01.17 [INFO] Can't find all required versions.
Selected: base-bytes.base base-threads.base base-unix.base dune.3.13.0
          ocaml-config.3 ocaml-secondary-compiler.4.08.1-1 ocamlbuild.0.14.3
          ocamlfind.1.9.6 ocamlfind-secondary.1.9.6 ppx_derivers.1.2.1
          ppx_tools_versioned.5.4.0 result.1.5 sedlex.2.2 uchar.0.0.2
          m17n&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler ocaml&ocamlfind-secondary
- gen -> gen.0.4
    m17n 1.0 requires >= 0.2.3 & < 0.5
- m17n -> m17n.1.0
    User requested = 1.0
- ocaml -> ocaml.4.03.0
    User requested <= 5.1.0
    gen 0.4 requires < 4.06.0
    m17n 1.0 requires = 4.03.0
- 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-migrate-parsetree -> ocaml-migrate-parsetree.1.8.0
    ppx_tools_versioned 5.4.0 requires >= 1.7.0 & < 2.0.0
- uucp -> uucp.1.1.0
    m17n 1.0 requires >= 1.1.0 & < 2.0.0
- uunf -> uunf.1.0.0
    m17n 1.0 requires >= 1.0.0 & < 2.0.0
- uutf -> uutf.0.9.4
    m17n 1.0 requires >= 0.9.4 & < 1.0.0