Package obrowser

Failed to find a solution:

no platform:
2024-05-29 15:02.55 [INFO] Solving for ocaml-base-compiler, ocaml,
                           obrowser using opam_repository_commit 7311123dcaba6b163a96ad2219b8cc4e59df93a3

2024-05-29 15:03.01 [INFO] base: eliminated all possibilities in 2.70 s

2024-05-29 15:03.01 [INFO] = base =

2024-05-29 15:03.01 [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 lwt.2.4.6 menhir.20140422 ocaml-config.3
          ocamlfind.1.9.6 obrowser&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler base-no-ppx
- obrowser -> obrowser.1.1.1
    User requested = 1.1.1
- ocaml -> ocaml.3.12.1
    User requested <= 5.1.1
    base-no-ppx base requires < 4.02.0
    obrowser 1.1.1 requires = 3.12.1
- 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-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.5.2.1+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.2.0+statmemprof: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.2.0+options: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.2.0~rc1+options: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ...
- ocamlbuild -> ocamlbuild.0
    menhir 20140422 requires < 0.9.1