Package conduit

Failed to find a solution:

no platform:
2024-05-29 14:55.15 [INFO] Solving for ocaml-base-compiler, ocaml,
                           conduit using opam_repository_commit 7311123dcaba6b163a96ad2219b8cc4e59df93a3

2024-05-29 14:55.21 [INFO] base: eliminated all possibilities in 3.32 s

2024-05-29 14:55.21 [INFO] = base =

2024-05-29 14:55.21 [INFO] Can't find all required versions.
Selected: base.v0.17.0 base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base csexp.1.5.2 cstruct.6.2.0
          dune.3.15.3 dune-configurator.3.15.3 fmt.0.9.0
          ocaml-compiler-libs.v0.12.4 ocaml-config.3 ocaml-options-vanilla.1
          ocaml_intrinsics_kernel.v0.17.0 ocamlbuild.0.14.3 ocamlfind.1.9.6
          ppx_derivers.1.2.1 ppx_sexp_conv.v0.17.0 ppxlib.0.32.1
          ppxlib_jane.v0.17.0 re.1.11.0 seq.base sexplib0.v0.17.0
          stdlib-shims.0.3.0 stringext.1.6.0 topkg.1.0.7
          conduit&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler ocaml base-domains ocaml ocaml-base-compiler
- conduit -> conduit.0.8.1
    User requested = 0.8.1
- ipaddr -> (problem)
    conduit 0.8.1 requires >= 2.5.0 & < 3.0.0
    Rejected candidates:
      ipaddr.5.6.0: Incompatible with restriction: >= 2.5.0 & < 3.0.0
      ipaddr.5.5.0: Incompatible with restriction: >= 2.5.0 & < 3.0.0
      ipaddr.5.4.0: Incompatible with restriction: >= 2.5.0 & < 3.0.0
      ipaddr.5.3.1: Incompatible with restriction: >= 2.5.0 & < 3.0.0
      ipaddr.5.3.0: Incompatible with restriction: >= 2.5.0 & < 3.0.0
      ...
- jbuilder -> (problem)
    dune 3.15.3 requires not(= transition)
    Rejected candidates:
      jbuilder.transition: Incompatible with restriction: not(= transition)
      jbuilder.1.0+beta20.2: Requires ocaml >= 4.02.3 & < 5.0
      jbuilder.1.0+beta20.1: Requires ocaml >= 4.02.3 & < 5.0
      jbuilder.1.0+beta20: Requires ocaml >= 4.02.3 & < 4.08.0
      jbuilder.1.0+beta19.1: Requires ocaml >= 4.02.3 & < 4.08.0
      ...
- 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~
- ocaml-migrate-parsetree -> (problem)
    Rejected candidates:
      ocaml-migrate-parsetree.2.4.0: Requires ocaml >= 4.02.3 & < 5.1
      ocaml-migrate-parsetree.2.3.0: Requires ocaml >= 4.02.3 & < 4.15
      ocaml-migrate-parsetree.2.2.0: Requires ocaml >= 4.02.3 & < 4.14
      ocaml-migrate-parsetree.2.1.0: Requires ocaml >= 4.02.3 & < 4.13
      ocaml-migrate-parsetree.2.0.0: Requires ocaml >= 4.02.3 & < 4.12
      ...
- sexplib -> (problem)
    conduit 0.8.1 requires >= 109.15.00 & < 113.01.00
    Rejected candidates:
      sexplib.v0.17.0: Incompatible with restriction: >= 109.15.00 & < 113.01.00
      sexplib.v0.16.0: Incompatible with restriction: >= 109.15.00 & < 113.01.00
      sexplib.v0.15.1: Incompatible with restriction: >= 109.15.00 & < 113.01.00
      sexplib.v0.15.0: Incompatible with restriction: >= 109.15.00 & < 113.01.00
      sexplib.v0.14.0: Incompatible with restriction: >= 109.15.00 & < 113.01.00
      ...
- uri -> uri.1.9.7
    conduit 0.8.1 requires < 2.0.0