Package fpath-sexp0

Failed to find a solution:

no platform:
2024-09-27 17:11.39 [INFO] Solving for ocaml-base-compiler, ocaml,
                           fpath-sexp0 using opam_repository_commit a70ac3366bdaaf354374c8ac8929d09c17e6f494

2024-09-27 17:12.58 [INFO] base: eliminated all possibilities in 1.21 s

2024-09-27 17:12.58 [INFO] = base =

2024-09-27 17:12.58 [INFO] Can't find all required versions.
Selected: astring.0.8.5 base-bigarray.base base-domains.base
          base-effects.base base-nnp.base base-threads.base base-unix.base
          dune.3.16.0 fpath.0.7.3 host-arch-x86_64.1
          ocaml-compiler.5.3.0~alpha1 ocaml-options-vanilla.1
          ocamlbuild.0.15.0 ocamlfind.1.9.6 sexplib0.v0.17.0 topkg.1.0.7
          fpath-sexp0&ocaml&ocaml-base-compiler ocaml system-mingw
          system-mingw|system-msvc&winpthreads host-arch-x86_64 ocaml
          base-domains ocaml-variants ocaml-base-compiler
- fpath-sexp0 -> fpath-sexp0.0.2.1
    User requested = 0.2.1
- ocaml -> (problem)
    User requested <= 5.1.1
    astring 0.8.5 requires >= 4.05.0
    fpath-sexp0 0.2.1 requires >= 5.2
    Rejected candidates:
      ocaml.5.1.1: Incompatible with restriction: >= 5.2
      ocaml.5.1.0: Incompatible with restriction: >= 5.2
      ocaml.5.0.1: Incompatible with restriction: >= 5.2
      ocaml.5.0.0: Incompatible with restriction: >= 5.2
      ocaml.4.14.3: Incompatible with restriction: >= 5.2
      ...
- ocaml-base-compiler -> ocaml-base-compiler.5.3.0~alpha1
    User requested >= 4.04.1
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.4.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0~alpha1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.2.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.2.0+statmemprof: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied