Package sedlex

Failed to find a solution:

no platform:
2024-09-12 08:17.37 [INFO] Solving for ocaml-base-compiler, ocaml,
                           sedlex using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 08:17.43 [INFO] base: eliminated all possibilities in 2.81 s

2024-09-12 08:17.43 [INFO] = base =

2024-09-12 08:17.43 [INFO] Can't find all required versions.
Selected: ocaml-config.3 ocamlfind.1.9.6 sedlex&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler
- ocaml -> ocaml.4.01.0
    User requested <= 5.1.1
    sedlex 1.99 requires >= 4.01.0 & < 4.02.0
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.2.0: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~rc1: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~beta2: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~beta1: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~alpha1: Requires ocaml = 5.2.0
      ...
- sedlex -> sedlex.1.99
    User requested = 1.99