Package sexplib

Failed to find a solution:

no platform:
2024-09-12 08:27.52 [INFO] Solving for ocaml-base-compiler, ocaml,
                           sexplib using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 08:27.59 [INFO] base: eliminated all possibilities in 2.93 s

2024-09-12 08:27.59 [INFO] = base =

2024-09-12 08:27.59 [INFO] Can't find all required versions.
Selected: base-ocamlbuild.base ocaml-config.3 ocamlbuild.0 ocamlfind.1.9.6
          sexplib&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler
- ocaml -> ocaml.4.02.4
    User requested <= 5.1.1
    base-ocamlbuild base requires >= 3.10 & < 4.03
- 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
      ...
- sexplib -> sexplib.112.06.01
    User requested = 112.06.01