Package avroc

Failed to find a solution:

no platform:
2024-05-29 15:03.05 [INFO] Solving for ocaml-base-compiler, ocaml,
                           avroc using opam_repository_commit 7311123dcaba6b163a96ad2219b8cc4e59df93a3

2024-05-29 15:03.11 [INFO] base: eliminated all possibilities in 3.06 s

2024-05-29 15:03.11 [INFO] = base =

2024-05-29 15:03.11 [INFO] Can't find all required versions.
Selected: base-ocamlbuild.base base-threads.base base-unix.base
          bigarray-compat.1.1.0 conf-libffi.2.0.0 conf-pkg-config.3
          ctypes-foreign.0.18.0 dune.3.15.3 integers.0.4.0 ocaml-config.3
          ocaml-secondary-compiler.4.08.1-1 ocamlbuild.0 ocamlfind.1.9.6
          ocamlfind-secondary.1.9.6 avroc&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler ocaml&ocamlfind-secondary
- avroc -> avroc.0.0.1
    User requested = 0.0.1
- ctypes -> ctypes.0.18.0
    ctypes-foreign 0.18.0 requires < 0.21.0
- ocaml -> ocaml.4.02.4
    User requested <= 5.1.1
    avroc 0.0.1 requires >= 4.00.0 & < 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
      ...