Package iocaml-kernel

Failed to find a solution:

no platform:
2024-09-12 08:14.55 [INFO] Solving for ocaml-base-compiler, ocaml,
                           iocaml-kernel using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 08:15.01 [INFO] base: eliminated all possibilities in 2.98 s

2024-09-12 08:15.01 [INFO] = base =

2024-09-12 08:15.01 [INFO] Can't find all required versions.
Selected: atdgen.1.12.0 base-ocamlbuild.base base-threads.base base-unix.base
          biniou.1.0.13 conf-pkg-config.3 conf-which.1 conf-zmq.0.1
          cppo.1.6.5 dune.3.16.0 easy-format.1.2.0 ocaml-config.3
          ocamlfind.1.9.6 ocp-build.1.99.21 ocp-indent.1.8.1 ocp-index.1.1.5
          ounit.2.2.7 result.1.5 topkg.1.0.0 uint.1.2.1 uuidm.0.9.6
          iocaml-kernel&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler seq&ocaml
- atd -> atd.1.12.0
    atdgen 1.12.0 requires >= 1.2.0 & < 1.13.0
- base-bytes -> (problem)
    uint 1.2.1 requires = base
    Rejected candidates:
      base-bytes.base: Requires ocaml >= 4.02.0
      base-bytes.backport: Incompatible with restriction: = base
- cmdliner -> (problem)
    ocp-build 1.99.21 requires >= 1 & < 1.1.0
    Rejected candidates:
      cmdliner.1.3.0: Requires ocaml >= 4.08.0
      cmdliner.1.2.0: Requires ocaml >= 4.08.0
      cmdliner.1.1.1: Requires ocaml >= 4.08.0
      cmdliner.1.1.0: Requires ocaml >= 4.08.0
      cmdliner.1.0.4: Requires ocaml >= 4.03.0
      ...
- iocaml-kernel -> iocaml-kernel.0.4.0
    User requested = 0.4.0
- jbuilder -> (problem)
    atd 1.12.0 requires >= 1.0+beta7
    cppo 1.6.5 requires >= 1.0+beta17
    dune 3.16.0 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
      ...
- menhir -> menhir.20140422
    atd 1.12.0 requires < 20211215
- ocaml -> ocaml.4.01.0
    User requested <= 5.1.1
    atd 1.12.0 requires < 5.0
    base-ocamlbuild base requires >= 3.10 & < 4.03
    iocaml-kernel 0.4.0 requires >= 4.01.0 & < 4.02.0
- 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
      ...
- ocamlbuild -> ocamlbuild.0
    menhir 20140422 requires < 0.9.1
- ounit2 -> (problem)
    ounit 2.2.7 requires = 2.2.7
    Rejected candidates:
      ounit2.2.2.7: Requires ocaml >= 4.04.0
      ounit2.2.2.6: Incompatible with restriction: = 2.2.7
      ounit2.2.2.5: Incompatible with restriction: = 2.2.7
      ounit2.2.2.4: Incompatible with restriction: = 2.2.7
      ounit2.2.2.3: Incompatible with restriction: = 2.2.7
      ...
- re -> (problem)
    ocp-build 1.99.21 requires >= 1.7.3
    Rejected candidates:
      re.1.12.0: Requires ocaml >= 4.12
      re.1.11.0: Requires ocaml >= 4.03
      re.1.10.4: Requires ocaml >= 4.03
      re.1.10.3: Requires ocaml >= 4.02
      re.1.9.0: Requires ocaml >= 4.08
      ...
- seq -> seq.0.3.1
    seq&ocaml|seq&ocaml seq&ocaml requires < base
- yojson -> yojson.1.3.3
    atdgen 1.12.0 requires >= 1.2.1 & < 2.0.0
- zmq -> (problem)
    iocaml-kernel 0.4.0 requires = 3.2-2
    Rejected candidates:
      zmq.5.3.0: Incompatible with restriction: = 3.2-2
      zmq.5.2.2: Incompatible with restriction: = 3.2-2
      zmq.5.2.1: Incompatible with restriction: = 3.2-2
      zmq.5.1.5: Incompatible with restriction: = 3.2-2
      zmq.5.1.4: Incompatible with restriction: = 3.2-2
      ...
- ocaml|ocaml&ocamlfind-secondary -> (problem)
    Rejected candidates:
      ocaml: Requires ocaml >= 4.08
      ocaml&ocamlfind-secondary: Requires ocaml >= 4.02 & < 4.08~~