Package capnp

Failed to find a solution:

no platform:
2024-09-12 08:32.01 [INFO] Solving for ocaml-base-compiler, ocaml,
                           capnp using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 08:32.07 [INFO] base: eliminated all possibilities in 3.31 s

2024-09-12 08:32.07 [INFO] = base =

2024-09-12 08:32.07 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-bytes.base base-domains.base base-nnp.base
          base-threads.base base-unix.base camlp-streams.5.0.1 camlp4.5.1
          conf-capnproto.2 cppo.1.7.0 dune.3.16.0 host-arch-x86_64.1
          ocaml-config.3 ocaml-options-vanilla.1 ocamlbuild.0.15.0
          ocamlfind.1.9.6 ocplib-endian.1.2 omake.0.10.6 res.5.0.1
          stdint.0.7.2 uint.2.0.1 capnp&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler system-mingw ocaml
          base-domains ocaml ocaml-base-compiler
- capnp -> capnp.2.0.1
    User requested = 2.0.1
- core -> (problem)
    capnp 2.0.1 requires < 111.25.00
    Rejected candidates:
      core.v0.17.1: Incompatible with restriction: < 111.25.00
      core.v0.17.0: Incompatible with restriction: < 111.25.00
      core.v0.16.2: Incompatible with restriction: < 111.25.00
      core.v0.16.1: Incompatible with restriction: < 111.25.00
      core.v0.16.0: Incompatible with restriction: < 111.25.00
      ...
- ocaml -> ocaml.5.1.1
    User requested <= 5.1.1
- ocaml-base-compiler -> ocaml-base-compiler.5.1.1
    User requested >= 4.04.1
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires >= 5.1.1~ & < 5.1.2~
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied