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 2.63 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 base-threads.base base-unix.base
          camlp4.4.02.0-1modular-implicits conf-which.1 dune.3.13.0
          ocaml-config.3 ocaml-secondary-compiler.4.08.1-1 ocamlbuild.0
          ocamlfind.1.9.6 ocamlfind-secondary.1.9.6 ocamlgraph.1.8.8
          pa_monad_custom.v6.0.0 re.1.10.3 seq.0.3.1 type_conv.113.00.02
          planck&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler ocaml&ocamlfind-secondary
- ocaml -> ocaml.4.02.4
    User requested <= 5.1.0
    base-ocamlbuild base requires >= 3.10 & < 4.03
- 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.0.9.8.7
    spotlib 2.5.3 requires < 0.10.1
- planck -> planck.2.1.1
    User requested = 2.1.1
- ppx_test -> ppx_test.1.2.1
    spotlib 2.5.3 requires < 1.6.0
- sexplib -> sexplib.113.00.00
    planck 2.1.1 requires >= 108.07.00 & < 113.01.00
- spotlib -> spotlib.2.5.3
    planck 2.1.1 requires >= 2.2.0 & < 3.0.0