Package ocamltter

Failed to find a solution:

no platform:
2024-01-29 14:49.59 [INFO] Solving for ocaml-base-compiler, ocaml,
                           ocamltter using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 14:50.04 [INFO] base: eliminated all possibilities in 2.29 s

2024-01-29 14:50.04 [INFO] = base =

2024-01-29 14:50.04 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base conf-gmp.4 conf-gmp-powm-sec.3
          conf-libcurl.2 conf-pkg-config.3 conf-zlib.1 cryptokit.1.19
          csexp.1.5.2 dune.3.13.0 dune-configurator.3.13.0 ocaml-config.3
          ocaml-options-vanilla.1 ocamlfind.1.9.6 ocurl.0.9.2 omake.0.10.6
          zarith.1.13 ocamltter&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler ocaml base-domains ocaml ocaml-base-compiler
- meta_conv -> (problem)
    Rejected candidates:
      meta_conv.1.1.5: Requires ocaml >= 4.02.0 & < 4.03.0
      meta_conv.1.1.4: Requires ocaml = 4.01.0
      meta_conv.1.1.3: Requires ocaml = 4.01.0
      meta_conv.1.1.2: Requires ocaml = 4.00.1
      meta_conv.1.1.1: Requires ocaml = 4.00.1
      ...
- ocaml -> ocaml.5.1.0
    User requested <= 5.1.0
- ocaml-base-compiler -> ocaml-base-compiler.5.1.0
    User requested >= 4.04.1
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires >= 5.1.0~ & < 5.1.1~
- ocamltter -> ocamltter.2.0.0
    User requested = 2.0.0
- spotlib -> (problem)
    ocamltter 2.0.0 requires >= 2.1.1 & <= 2.1.2
    Rejected candidates:
      spotlib.4.3.0: Incompatible with restriction: >= 2.1.1 & <= 2.1.2
      spotlib.4.2.0: Incompatible with restriction: >= 2.1.1 & <= 2.1.2
      spotlib.4.1.0: Incompatible with restriction: >= 2.1.1 & <= 2.1.2
      spotlib.4.0.3: Incompatible with restriction: >= 2.1.1 & <= 2.1.2
      spotlib.4.0.2: Incompatible with restriction: >= 2.1.1 & <= 2.1.2
      ...
- tiny_json -> (problem)
    ocamltter 2.0.0 requires = 1.0.0
    Rejected candidates:
      tiny_json.1.1.6: Incompatible with restriction: = 1.0.0
      tiny_json.1.1.5: Incompatible with restriction: = 1.0.0
      tiny_json.1.1.4: Incompatible with restriction: = 1.0.0
      tiny_json.1.1.3: Incompatible with restriction: = 1.0.0
      tiny_json.1.1.2: Incompatible with restriction: = 1.0.0
      ...
- tiny_json_conv -> tiny_json_conv.1.2.0
    ocamltter 2.0.0 requires = 1.2.0