Package js_of_ocaml

Failed to find a solution:

no platform:
2024-01-29 15:10.28 [INFO] Solving for ocaml-base-compiler, ocaml,
                           js_of_ocaml using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 15:10.34 [INFO] base: eliminated all possibilities in 2.68 s

2024-01-29 15:10.34 [INFO] = base =

2024-01-29 15:10.34 [INFO] Can't find all required versions.
Selected: base-no-ppx.base base-ocamlbuild.base
          camlp4.4.02.0-1modular-implicits conf-ncurses.1 conf-pkg-config.3
          conf-which.1 deriving-ocsigen.0.5 lwt.2.4.6 ocaml-config.3
          ocamlbuild.0 ocamlfind.1.9.6 optcomp.1.6
          js_of_ocaml&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler base-no-ppx
- js_of_ocaml -> js_of_ocaml.1.2
    User requested = 1.2
- ocaml -> ocaml.4.00.1
    User requested <= 5.1.0
    base-no-ppx base requires < 4.02.0
    js_of_ocaml 1.2 requires <= 4.00.1
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.1.1: Requires ocaml = 5.1.1
      ocaml-base-compiler.5.1.1~rc1: Requires ocaml = 5.1.1
      ocaml-base-compiler.5.1.0: Requires ocaml = 5.1.0
      ocaml-base-compiler.5.1.0~rc3: Requires ocaml = 5.1.0
      ocaml-base-compiler.5.1.0~rc2: Requires ocaml = 5.1.0
      ...
- ocaml-variants -> (problem)
    camlp4 4.02.0-1modular-implicits requires = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
    Rejected candidates:
      ocaml-variants.5.3.0+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.2.0+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.2+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.1+tsan: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.1+options: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ...