Package ppx_sexp

Failed to find a solution:

no platform:
2024-09-12 08:21.11 [INFO] Solving for ocaml-base-compiler, ocaml,
                           ppx_sexp using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 08:21.18 [INFO] base: eliminated all possibilities in 3.16 s

2024-09-12 08:21.18 [INFO] = base =

2024-09-12 08:21.18 [INFO] Can't find all required versions.
Selected: ocaml-config.3 ocamlfind.1.9.6 ppx_sexp&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler
- ocaml -> ocaml.4.02.4
    User requested <= 5.1.1
    ppx_sexp 0.3.0 requires >= 4.02.0 & < 4.03.0
- 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
      ...
- ppx_sexp -> ppx_sexp.0.3.0
    User requested = 0.3.0