Package serde

Failed to find a solution:

no platform:
2024-04-12 10:48.55 [INFO] Solving for ocaml-base-compiler, ocaml,
                           serde using opam_repository_commit 03178cf5192dd1a55105844365e56a2294cd9225

2024-04-12 10:50.05 [INFO] base: eliminated all possibilities in 1.12 s

2024-04-12 10:50.05 [INFO] = base =

2024-04-12 10:50.05 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base cstruct.6.2.0 dune.3.15.0
          fmt.0.9.0 ocaml-options-vanilla.1 ocamlbuild.0.14.3 ocamlfind.1.9.6
          rio.0.0.8 topkg.1.0.7 serde&ocaml&ocaml-base-compiler ocaml
          base-domains ocaml ocaml-base-compiler
- ocaml -> (problem)
    User requested <= 5.1.0
    cstruct 6.2.0 requires >= 4.08.0
    ocaml-base-compiler 5.2.0~beta1 requires = 5.2.0
    Rejected candidates:
      ocaml.5.1.0: Incompatible with restriction: = 5.2.0
      ocaml.5.0.1: Incompatible with restriction: = 5.2.0
      ocaml.5.0.0: Incompatible with restriction: = 5.2.0
      ocaml.4.14.3: Incompatible with restriction: = 5.2.0
      ocaml.4.14.2: Incompatible with restriction: = 5.2.0
      ...
- ocaml-base-compiler -> ocaml-base-compiler.5.2.0~beta1
    User requested >= 4.04.1
- serde -> serde.0.0.2
    User requested = 0.0.2