Package cohttp

Failed to find a solution:

no platform:
2024-05-29 14:51.41 [INFO] Solving for ocaml-base-compiler, ocaml,
                           cohttp using opam_repository_commit 7311123dcaba6b163a96ad2219b8cc4e59df93a3

2024-05-29 14:51.47 [INFO] base: eliminated all possibilities in 2.52 s

2024-05-29 14:51.47 [INFO] = base =

2024-05-29 14:51.47 [INFO] Can't find all required versions.
Selected: base-bytes.base base-threads.base base-unix.base conf-bash.1
          cppo.1.6.9 csexp.1.5.2 dune.3.15.3 dune-configurator.3.15.3
          logs.0.7.0 ocaml-compiler-libs.v0.12.4 ocaml-config.3
          ocamlbuild.0.14.3 ocamlfind.1.9.6 ounit.2.2.7 ounit2.2.2.7
          ppx_derivers.1.2.1 ppx_deriving.6.0.2 ppx_sexp_conv.v0.16.0
          ppxlib.0.32.1 re.1.11.0 result.1.5 seq.base stdlib-shims.0.3.0
          stringext.1.6.0 topkg.1.0.7 cohttp&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler ocaml
- base -> base.v0.16.3
    ppx_sexp_conv v0.16.0 requires >= v0.16 & < v0.17
- cohttp -> cohttp.0.12.0
    User requested = 0.12.0
- conduit -> conduit.0.15.4
    cohttp 0.12.0 requires >= 0.6.0 & < 0.16.0
- fieldslib -> (problem)
    cohttp 0.12.0 requires >= 109.20.00 & < 113.01.00
    Rejected candidates:
      fieldslib.v0.17.0: Incompatible with restriction: >= 109.20.00 & < 113.01.00
      fieldslib.v0.16.0: Incompatible with restriction: >= 109.20.00 & < 113.01.00
      fieldslib.v0.15.0: Incompatible with restriction: >= 109.20.00 & < 113.01.00
      fieldslib.v0.14.0: Incompatible with restriction: >= 109.20.00 & < 113.01.00
      fieldslib.v0.13.0: Incompatible with restriction: >= 109.20.00 & < 113.01.00
      ...
- ipaddr -> ipaddr.2.9.0
    conduit 0.15.4 requires >= 2.5.0 & < 3.0.0
- jbuilder -> jbuilder.1.0+beta20.2
    dune 3.15.3 requires not(= transition)
- ocaml -> ocaml.4.14.3
    User requested <= 5.1.1
    cohttp 0.12.0 requires < 5.0
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.2.0: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~rc1: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~beta2: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~beta1: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~alpha1: Requires ocaml = 5.2.0
      ...
- ocaml-migrate-parsetree -> (problem)
    ppx_driver v0.9.2 requires >= 1.0 & < 2.0.0
    Rejected candidates:
      ocaml-migrate-parsetree.2.4.0: Incompatible with restriction: >= 1.0 & < 2.0.0
      ocaml-migrate-parsetree.2.3.0: Incompatible with restriction: >= 1.0 & < 2.0.0
      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
      ...
- ppx_core -> (problem)
    Rejected candidates:
      ppx_core.v0.11.0: Requires ppxlib >= 0.1.0 & < 0.3.0
      ppx_core.v0.10.0: Requires base >= v0.10 & < v0.11
      ppx_core.v0.9.3: Requires base >= v0.9.3 & < v0.10
      ppx_core.v0.9.2: Requires base >= v0.9.4 & < v0.10
      ppx_core.v0.9.0: Requires ocaml >= 4.03.0 & < 4.06.0
      ...
- ppx_driver -> ppx_driver.v0.9.2
    conduit 0.15.4 requires >= v0.9.1 & < v0.10.0
- ppx_optcomp -> ppx_optcomp.v0.9.0
    ppx_driver v0.9.2 requires >= v0.9 & < v0.10
- sexplib -> (problem)
    cohttp 0.12.0 requires >= 109.53.00 & < 113.01.00
    Rejected candidates:
      sexplib.v0.17.0: Incompatible with restriction: >= 109.53.00 & < 113.01.00
      sexplib.v0.16.0: Incompatible with restriction: >= 109.53.00 & < 113.01.00
      sexplib.v0.15.1: Incompatible with restriction: >= 109.53.00 & < 113.01.00
      sexplib.v0.15.0: Incompatible with restriction: >= 109.53.00 & < 113.01.00
      sexplib.v0.14.0: Incompatible with restriction: >= 109.53.00 & < 113.01.00
      ...
- sexplib0 -> sexplib0.v0.16.0
    base v0.16.3 requires >= v0.16 & < v0.17
- uri -> uri.1.9.7
    cohttp 0.12.0 requires >= 1.5.0 & < 2.0.0