Package cstruct

Failed to find a solution:

no platform:
2024-09-12 07:58.08 [INFO] Solving for ocaml-base-compiler, ocaml,
                           cstruct using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 07:58.15 [INFO] base: eliminated all possibilities in 3.07 s

2024-09-12 07:58.15 [INFO] = base =

2024-09-12 07:58.15 [INFO] Can't find all required versions.
Selected: base-bytes.base base-threads.base base-unix.base camlp4.4.05+system
          cppo.1.7.0 dune.3.16.0 host-arch-x86_64.1 ocaml-config.3
          ocaml-secondary-compiler.4.14.2 ocamlbuild.0.14.3 ocamlfind.1.9.6
          ocamlfind-secondary.1.9.6 ocplib-endian.1.2 type_conv.113.00.02
          cstruct&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler system-mingw system-mingw|system-msvc
          ocaml&ocamlfind-secondary
- cstruct -> cstruct.1.5.0
    User requested = 1.5.0
- ocaml -> ocaml.4.05.1
    User requested <= 5.1.1
    camlp4 4.05+system requires >= 4.05 & < 4.06
- 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
      ...
- ocaml-system -> (problem)
    No usable implementations:
      ocaml-system.5.2.0: Availability condition not satisfied
      ocaml-system.5.1.1: Availability condition not satisfied
      ocaml-system.5.1.0: Availability condition not satisfied
      ocaml-system.5.0.0: Availability condition not satisfied
      ocaml-system.4.14.2: Availability condition not satisfied
      ...
- sexplib -> (problem)
    cstruct 1.5.0 requires < 113.01.00
    Rejected candidates:
      sexplib.v0.17.0: Incompatible with restriction: < 113.01.00
      sexplib.v0.16.0: Incompatible with restriction: < 113.01.00
      sexplib.v0.15.1: Incompatible with restriction: < 113.01.00
      sexplib.v0.15.0: Incompatible with restriction: < 113.01.00
      sexplib.v0.14.0: Incompatible with restriction: < 113.01.00
      ...
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied