Package protocol-9p-unix

Failed to find a solution:

no platform:
2025-06-02 22:42.23 [INFO] Solving for ocaml-base-compiler,
                           protocol-9p-unix, constraints ocaml-base-compiler<=5.3.0,
                           protocol-9p-unix=2.0.2 using opam_repository_commit c037675bed027195b802bf40b1840ece3feb3b2a

2025-06-02 22:42.24 [INFO] base: eliminated all possibilities in 0.57 s

2025-06-02 22:42.24 [INFO] = base =

2025-06-02 22:42.24 [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.6.2.0
          cstruct-lwt.6.2.0 cstruct-sexp.6.2.0 dune.3.19.0
          dune-configurator.3.19.0 fmt.0.10.0 logs.0.8.0 lwt.5.9.1
          mirage-channel.4.1.0 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
- 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-flow -> mirage-flow.3.0.0
    protocol-9p-unix 2.0.2 requires >= 3.0.0 & < 4.0.0
- 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.5.4.0~alpha1: 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-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.5.4.0~alpha1+options: 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
      ...
- 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.0.37.0~5.4preview: Incompatible with restriction: >= 0.22.0 & < 0.26.0
      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
      ...
- protocol-9p-unix -> protocol-9p-unix.2.0.2
    User requested = 2.0.2
- 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
      ...