Package conf-pic-switch

Failed to find a solution:

no platform:
2024-06-04 16:28.08 [INFO] Solving for ocaml-base-compiler, ocaml,
                           conf-pic-switch using opam_repository_commit 5979d639be2999663a41c1d1b8a73ce3036dcb41

2024-06-04 16:28.10 [INFO] base: eliminated all possibilities in 0.90 s

2024-06-04 16:28.10 [INFO] = base =

2024-06-04 16:28.10 [INFO] Can't find all required versions.
Selected: conf-bash.1 ocaml-config.3
          conf-pic-switch&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler
- conf-pic-switch -> conf-pic-switch.0.1
    User requested = 0.1
- ocaml -> ocaml.4.02.1
    User requested <= 5.1.0
    conf-pic-switch 0.1 requires >= 4.01.0 & < 4.02.2
- 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
      ...