Package ppxlib

Failed to find a solution:

no platform:
2024-04-30 08:15.42 [INFO] Solving for ocaml-base-compiler, ocaml,
                           ppxlib using opam_repository_commit e90e14059cec32db91a535e4d257f4189d19feb9

2024-04-30 08:17.02 [INFO] base: eliminated all possibilities in 1.21 s

2024-04-30 08:17.02 [INFO] = base =

2024-04-30 08:17.02 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base ocaml-config.3
          ocaml-options-vanilla.1 ppxlib&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler ocaml base-domains
          ocaml-base-compiler
- ocaml -> ocaml.5.1.1
    User requested <= 5.1.1
- ocaml-base-compiler -> ocaml-base-compiler.5.1.1
    User requested >= 4.04.1
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires >= 5.1.1~ & < 5.1.2~
- ppxlib -> (problem)
    User requested = 0.32.1~5.2preview
    No usable implementations:
      ppxlib.0.32.1: Rejected by user-specified constraint ppxlib (= 0.32.1~5.2preview)
      ppxlib.0.32.1~5.2preview: Availability condition not satisfied
      ppxlib.0.32.0: Rejected by user-specified constraint ppxlib (= 0.32.1~5.2preview)
      ppxlib.0.31.0: Rejected by user-specified constraint ppxlib (= 0.32.1~5.2preview)
      ppxlib.0.30.0: Rejected by user-specified constraint ppxlib (= 0.32.1~5.2preview)
      ...