Package planck

Failed to find a solution:

no platform:
2024-01-29 14:43.31 [INFO] Solving for ocaml-base-compiler, ocaml,
                           planck using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 14:43.36 [INFO] base: eliminated all possibilities in 2.30 s

2024-01-29 14:43.36 [INFO] = base =

2024-01-29 14:43.36 [INFO] Can't find all required versions.
Selected: base-ocamlbuild.base camlp4.4.02.0-1modular-implicits conf-which.1
          ocaml-config.3 ocamlbuild.0 ocamlfind.1.9.6
          planck&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler
- ocaml -> ocaml.3.12.1
    User requested <= 5.1.0
    base-ocamlbuild base requires >= 3.10 & < 4.03
    planck 1.0.1 requires = 3.12.1
- 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
      ...
- ocaml-variants -> (problem)
    camlp4 4.02.0-1modular-implicits requires = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
    Rejected candidates:
      ocaml-variants.5.3.0+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.2.0+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.2+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.1+tsan: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.1+options: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ...
- omake -> omake.0.9.8.6-0.rc1
    spotlib 1.0.0 requires < 0.10.1
- planck -> planck.1.0.1
    User requested = 1.0.1
- sexplib -> sexplib.108.08.00
    planck 1.0.1 requires >= 5.2.1 & < 113.01.00
- spotlib -> spotlib.1.0.0
    planck 1.0.1 requires = 1.0.0
- type_conv -> type_conv.108.08.00
    sexplib 108.08.00 requires = 108.08.00