Package protocol-9p-unix

Failed to find a solution:

no platform:
2025-05-16 17:45.19 [INFO] Solving for ocaml-base-compiler,
                           protocol-9p-unix, constraints ocaml-base-compiler<=5.3.0,
                           protocol-9p-unix=2.0.1 using opam_repository_commit cf409d95af00ff822422bd76b657ed213b661401

2025-05-16 17:45.21 [INFO] base: eliminated all possibilities in 0.55 s

2025-05-16 17:45.21 [INFO] = base =

2025-05-16 17:45.21 [INFO] Can't find all required versions.
Selected: asetmap.0.8.1 astring.0.8.5 base-bytes.base base-threads.base
          base-unix.base cppo.1.8.0 csexp.1.5.2 cstruct-sexp.6.2.0
          dune.3.18.2 dune-configurator.3.18.2 fmt.0.10.0 logs.0.8.0
          lwt.5.9.1 mirage-channel.4.1.0 mirage-flow.5.0.0 num.1.5-1
          ocaml.5.5.0 ocaml-config.3 ocaml-options-vanilla.1
          ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 prometheus.1.2
          protocol-9p.2.0.2 re.1.12.0 rresult.0.7.0 seq.base topkg.1.0.8
          win-error.1.0 protocol-9p-unix&ocaml-base-compiler ocaml-variants
          ocaml-base-compiler ocaml-base-compiler
- base -> base.v0.14.3
    parsexp v0.14.2 requires >= v0.14 & < v0.15
- cstruct -> (problem)
    cstruct-lwt 5.2.0 requires = 5.2.0
    cstruct-sexp 6.2.0 requires = 6.2.0
    Rejected candidates:
      cstruct.6.2.0: Incompatible with restriction: = 5.2.0
      cstruct.6.1.1: Incompatible with restriction: = 5.2.0
      cstruct.6.1.0: Incompatible with restriction: = 5.2.0
      cstruct.6.0.1: Incompatible with restriction: = 5.2.0
      cstruct.6.0.0: Incompatible with restriction: = 5.2.0
      ...
- cstruct-lwt -> cstruct-lwt.5.2.0
    protocol-9p-unix 2.0.1 requires >= 3.0.0 & < 6.0.0
- io-page-unix -> (problem)
    No usable implementations:
      io-page-unix.2.3.0: Availability condition not satisfied
      io-page-unix.2.2.0: Availability condition not satisfied
      io-page-unix.2.1.0: Availability condition not satisfied
      io-page-unix.2.0.1: Availability condition not satisfied
      io-page-unix.2.0.0: Availability condition not satisfied
- mirage-channel-lwt -> (problem)
    Rejected candidates:
      mirage-channel-lwt.3.2.0: Requires mirage-channel >= 3.0.0 & < 4.0.0
      mirage-channel-lwt.3.1.0: Requires mirage-channel >= 3.1.0 & < 4.0.0
      mirage-channel-lwt.3.0.0: Requires mirage-channel = 3.0.0
- mirage-flow-lwt -> (problem)
    Rejected candidates:
      mirage-flow-lwt.1.6.0: Requires mirage-flow >= 1.2.0 & < 2.0.0
      mirage-flow-lwt.1.5.0: Requires mirage-flow >= 1.2.0 & < 2.0.0
      mirage-flow-lwt.1.4.0: Requires lwt < 5.6.0
      mirage-flow-lwt.1.3.0: Requires lwt < 5.6.0
      mirage-flow-lwt.1.2.0: Requires fmt < 0.8.10
- ocaml-base-compiler -> ocaml-base-compiler.5.3.0
    User requested <= 5.3.0
- ocaml-compiler -> (problem)
    ocaml-base-compiler 5.3.0 requires = 5.3.0
    Rejected candidates:
      ocaml-compiler.5.5: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.4: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0: Requires ocaml = 5.3.0
      ocaml-compiler.5.3.0~rc1: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0~beta2: Incompatible with restriction: = 5.3.0
      ...
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.5.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+BER: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...
- parsexp -> parsexp.v0.14.2
    sexplib v0.14.0 requires >= v0.14 & < v0.15
- ppx_sexp_conv -> ppx_sexp_conv.v0.14.3
    protocol-9p 2.0.2 requires >= v0.9.0 & < v0.15
- ppxlib -> (problem)
    ppx_sexp_conv v0.14.3 requires >= 0.22.0 & < 0.26.0
    Rejected candidates:
      ppxlib.0.36.0: Incompatible with restriction: >= 0.22.0 & < 0.26.0
      ppxlib.0.35.0: Incompatible with restriction: >= 0.22.0 & < 0.26.0
      ppxlib.0.34.0: Incompatible with restriction: >= 0.22.0 & < 0.26.0
      ppxlib.0.33.0: Incompatible with restriction: >= 0.22.0 & < 0.26.0
      ppxlib.0.32.1: Incompatible with restriction: >= 0.22.0 & < 0.26.0
      ...
- protocol-9p-unix -> protocol-9p-unix.2.0.1
    User requested = 2.0.1
- sexplib -> sexplib.v0.14.0
    protocol-9p 2.0.2 requires > 113.00.00 & < v0.15
- sexplib0 -> (problem)
    base v0.14.3 requires >= v0.14 & < v0.15
    Rejected candidates:
      sexplib0.v0.17.0: Incompatible with restriction: >= v0.14 & < v0.15
      sexplib0.v0.16.0: Incompatible with restriction: >= v0.14 & < v0.15
      sexplib0.v0.15.1: Incompatible with restriction: >= v0.14 & < v0.15
      sexplib0.v0.15.0: Incompatible with restriction: >= v0.14 & < v0.15
      sexplib0.v0.14.0: Requires ocaml >= 4.04.2 & < 5.0
      ...