Package sedlex

Failed to find a solution:

no platform:
2024-01-29 15:01.44 [INFO] Solving for ocaml-base-compiler, ocaml,
                           sedlex using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 15:01.49 [INFO] base: eliminated all possibilities in 2.61 s

2024-01-29 15:01.49 [INFO] = base =

2024-01-29 15:01.49 [INFO] Can't find all required versions.
Selected: base-bytes.base base-threads.base base-unix.base dune.3.13.0
          gen.0.5.2 ocaml-config.3 ocaml-secondary-compiler.4.08.1-1
          ocamlfind.1.9.6 ocamlfind-secondary.1.9.6 ppx_tools.5.0+4.02.0
          sedlex&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler ocaml&ocamlfind-secondary
- ocaml -> ocaml.4.02.4
    User requested <= 5.1.0
    gen 0.5.2 requires < 4.11
    ppx_tools 5.0+4.02.0 requires >= 4.02.0 & < 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
      ...
- sedlex -> sedlex.1.99.1
    User requested = 1.99.1