Package cow

Failed to find a solution:

no platform:
2024-09-12 08:20.12 [INFO] Solving for ocaml-base-compiler, ocaml,
                           cow using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 08:20.19 [INFO] base: eliminated all possibilities in 3.63 s

2024-09-12 08:20.19 [INFO] = base =

2024-09-12 08:20.19 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-bytes.base base-ocamlbuild.base
          base-threads.base base-unix.base cppo.1.7.0 dune.3.16.0
          ezjsonm.1.0.0 hex.1.3.0 host-arch-x86_64.1 jsonm.1.0.1 oasis.0.4.11
          ocaml-config.3 ocaml-secondary-compiler.4.14.2 ocamlbuild.0
          ocamlfind.1.9.6 ocamlfind-secondary.1.9.6 ocamlify.0.0.1
          ocamlmod.0.0.9 ocplib-endian.1.1 omd.1.3.1 ppx_derivers.1.2.1
          ppx_deriving.4.5-1 ppx_tools.5.0+4.02.0 ppxfind.1.4 re.1.10.3
          result.1.5 seq.0.3.1 sexplib.113.24.00 stringext.1.6.0 topkg.1.0.0
          uchar.0.0.2 uri.1.9.2 uutf.1.0.2 xmlm.1.3.0
          cow&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler system-mingw system-mingw|system-msvc
          ocaml&ocamlfind-secondary
- cow -> cow.2.0.0
    User requested = 2.0.0
- cstruct -> cstruct.3.0.2
    hex 1.3.0 requires >= 1.7.0 & < 5.0.0
- jbuilder -> jbuilder.1.0+beta20.2
    dune 3.16.0 requires not(= transition)
- 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
      ...
- ocaml-migrate-parsetree -> ocaml-migrate-parsetree.1.8.0
    ppx_deriving 4.5-1 requires < 2.0.0
- ppx_sexp_conv -> (problem)
    uri 1.9.2 requires >= 113.33.01
    Rejected candidates:
      ppx_sexp_conv.v0.17.0: Requires ocaml >= 5.1.0
      ppx_sexp_conv.v0.16.0: Requires ocaml >= 4.14.0
      ppx_sexp_conv.v0.15.1: Requires ocaml >= 4.08.0
      ppx_sexp_conv.v0.15.0: Requires ocaml >= 4.08.0
      ppx_sexp_conv.v0.14.3: Requires ocaml >= 4.04.2
      ...
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied