Package eio

Failed to find a solution:

no platform:
2024-11-26 13:58.25 [INFO] Solving for ocaml-base-compiler, ocaml,
                           eio using opam_repository_commit 3d52b66b04788999a23f22f0d59c2dfc831c4f32

2024-11-26 13:58.27 [INFO] base: eliminated all possibilities in 0.83 s

2024-11-26 13:58.27 [INFO] = base =

2024-11-26 13:58.27 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-domains.base base-effects.base
          base-nnp.base base-threads.base base-unix.base bigstringaf.0.10.0
          csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 dune.3.16.1
          dune-configurator.3.16.1 fmt.0.9.0 hmap.0.8.1 host-arch-x86_64.1
          lwt-dllist.1.0.1 mtime.2.1.0 ocaml-compiler.5.3.0~beta1
          ocaml-options-vanilla.1 ocamlbuild.0.15.0 ocamlfind.1.9.6
          optint.0.3.0 psq.0.2.1 seq.base thread-table.1.0.0 topkg.1.0.7
          eio&ocaml&ocaml-base-compiler ocaml system-mingw
          system-mingw|system-msvc&winpthreads host-arch-x86_64 ocaml
          base-domains ocaml-variants ocaml-base-compiler
- eio -> eio.1.2
    User requested = 1.2
- ocaml -> (problem)
    User requested <= 5.0.0
    bigstringaf 0.10.0 requires >= 4.08.0
    domain-local-await 1.0.1 requires >= 4.12.0
    eio 1.2 requires >= 5.1.0
    Rejected candidates:
      ocaml.5.0.0: Incompatible with restriction: >= 5.1.0
      ocaml.4.14.3: Incompatible with restriction: >= 5.1.0
      ocaml.4.14.2: Incompatible with restriction: >= 5.1.0
      ocaml.4.14.1: Incompatible with restriction: >= 5.1.0
      ocaml.4.14.0: Incompatible with restriction: >= 5.1.0
      ...
- ocaml-base-compiler -> ocaml-base-compiler.5.3.0~beta1
    User requested >= 4.04.1
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.4.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0~beta1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0~alpha1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.2.2+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied