Package ocaml-options-only-nnpchecker

Failed to find a solution:

no platform:
2024-09-12 08:01.34 [INFO] Solving for ocaml-base-compiler, ocaml,
                           ocaml-options-only-nnpchecker using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 08:01.40 [INFO] base: eliminated all possibilities in 2.84 s

2024-09-12 08:01.40 [INFO] = base =

2024-09-12 08:01.40 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-threads.base base-unix.base
          host-arch-x86_64.1 ocaml-config.3 ocaml-option-nnpchecker.1
          ocaml-options-only-nnpchecker&ocaml&ocaml-base-compiler
          system-mingw system-mingw|system-msvc host-arch-x86_64
          ocaml-base-compiler ocaml-base-compiler
- ocaml -> ocaml.4.14.3
    User requested <= 5.1.1
    ocaml-variants 4.14.3+trunk requires = 4.14.3
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.2.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.2.0~rc1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.2.0~beta2: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.2.0~beta1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.2.0~alpha1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ...
- ocaml-options-only-nnpchecker -> ocaml-options-only-nnpchecker.1
    User requested = 1
- ocaml-variants -> ocaml-variants.4.14.3+trunk
    ocaml-option-nnpchecker 1 requires (>= 4.12.0~ | >= 4.14.0~) & < 5.0.0~~
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied