Package spotlib_js

Failed to find a solution:

no platform:
2024-01-29 14:44.56 [INFO] Solving for ocaml-base-compiler, ocaml,
                           spotlib_js using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 14:45.02 [INFO] base: eliminated all possibilities in 2.32 s

2024-01-29 14:45.02 [INFO] = base =

2024-01-29 14:45.02 [INFO] Can't find all required versions.
Selected: ocaml-config.3 ocamlfind.1.9.6 omake.0.9.8.6-0.rc1
          spotlib_js&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler
- ocaml -> ocaml.4.00.1
    User requested <= 5.1.0
    omake 0.9.8.6-0.rc1 requires < 4.06.0
    spotlib_js 2.2.0_js 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
      ...
- spotlib_js -> spotlib_js.2.2.0_js
    User requested = 2.2.0_js