Package protocol-9p

Failed to find a solution:

no platform:
2024-01-29 15:06.28 [INFO] Solving for ocaml-base-compiler, ocaml,
                           protocol-9p using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 15:06.34 [INFO] base: eliminated all possibilities in 2.83 s

2024-01-29 15:06.34 [INFO] = base =

2024-01-29 15:06.34 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base camlp4.4.02.0-1modular-implicits
          cmdliner.1.2.0 conf-pkg-config.3 conf-which.1 domain-name.0.4.0
          dune.3.13.0 fmt.0.9.0 io-page.3.0.0 ipaddr.5.5.0 macaddr.5.5.0
          ocaml-config.3 ocaml-options-vanilla.1 ocamlbuild.0.14.3
          ocamlfind.1.9.6 result.1.5 rresult.0.7.0 stringext.1.6.0
          topkg.1.0.7 protocol-9p&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler ocaml base-domains ocaml
          ocaml-base-compiler
- cstruct -> cstruct.3.7.0
    protocol-9p 0.2 requires < 4.0.0
- ctypes -> (problem)
    unix-errno 0.2.0 requires >= 0.4.0 & < 0.6.0
    Rejected candidates:
      ctypes.0.21.1: Incompatible with restriction: >= 0.4.0 & < 0.6.0
      ctypes.0.20.2: Incompatible with restriction: >= 0.4.0 & < 0.6.0
      ctypes.0.20.1: Incompatible with restriction: >= 0.4.0 & < 0.6.0
      ctypes.0.20.0: Incompatible with restriction: >= 0.4.0 & < 0.6.0
      ctypes.0.19.1: Requires base-nnp conflict with all versions
      ...
- lwt -> (problem)
    protocol-9p 0.2 requires >= 2.4.7 & < 3.0.0
    Rejected candidates:
      lwt.5.7.0: Incompatible with restriction: >= 2.4.7 & < 3.0.0
      lwt.5.6.1: Requires ocaml >= 4.08 & < 5.1
      lwt.5.6.0: Requires ocaml >= 4.08 & < 5.1
      lwt.5.5.0: Requires ocaml (>= 4.02.0 | >= 4.06.0) & < 5.0
      lwt.5.4.2: Requires ocaml >= 4.02.0 & < 5.0
      ...
- mirage-types -> (problem)
    mirage-types-lwt 2.8.0 requires = 2.8.0
    Rejected candidates:
      mirage-types.3.10.8: Incompatible with restriction: = 2.8.0
      mirage-types.3.10.7: Incompatible with restriction: = 2.8.0
      mirage-types.3.10.6: Incompatible with restriction: = 2.8.0
      mirage-types.3.10.5: Incompatible with restriction: = 2.8.0
      mirage-types.3.10.4: Incompatible with restriction: = 2.8.0
      ...
- mirage-types-lwt -> mirage-types-lwt.2.8.0
    protocol-9p 0.2 requires < 3.0.0
- ocaml -> ocaml.5.1.0
    User requested <= 5.1.0
- ocaml-base-compiler -> ocaml-base-compiler.5.1.0
    User requested >= 4.04.1
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires >= 5.1.0~ & < 5.1.1~
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.3.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.2.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.2+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.1+tsan: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...
- protocol-9p -> protocol-9p.0.2
    User requested = 0.2
- sexplib -> (problem)
    protocol-9p 0.2 requires < 113.01.00
    Rejected candidates:
      sexplib.v0.16.0: Incompatible with restriction: < 113.01.00
      sexplib.v0.15.1: Incompatible with restriction: < 113.01.00
      sexplib.v0.15.0: Incompatible with restriction: < 113.01.00
      sexplib.v0.14.0: Incompatible with restriction: < 113.01.00
      sexplib.v0.13.0: Incompatible with restriction: < 113.01.00
      ...
- unix-errno -> unix-errno.0.2.0
    protocol-9p 0.2 requires < 0.4.0