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 2.49 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 camlp4.4.02.0-1modular-implicits
          conf-gmp.4 conf-gmp-powm-sec.3 conf-libcurl.2 conf-libpcre.1
          conf-pkg-config.3 conf-which.1 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 ocamlbuild.0.14.3 ocamlfind.1.9.6
          ocurl.0.9.2 omake.0.10.6 orakuda.1.2.2 pcre.7.5.0 zarith.1.13
          ocamltter&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler ocaml base-domains ocaml ocaml-base-compiler
- 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~
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.3.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.2.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.2+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.1+tsan: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...
- ocamltter -> ocamltter.2.1.1
    User requested = 2.1.1
- spotlib -> (problem)
    ocamltter 2.1.1 requires >= 2.3.0 & <= 2.3.1
    orakuda 1.2.2 requires >= 2.4.0 & < 2.5.2
    Rejected candidates:
      spotlib.4.3.0: Incompatible with restriction: >= 2.3.0 & <= 2.3.1
      spotlib.4.2.0: Incompatible with restriction: >= 2.3.0 & <= 2.3.1
      spotlib.4.1.0: Incompatible with restriction: >= 2.3.0 & <= 2.3.1
      spotlib.4.0.3: Incompatible with restriction: >= 2.3.0 & <= 2.3.1
      spotlib.4.0.2: Incompatible with restriction: >= 2.3.0 & <= 2.3.1
      ...
- tiny_json_conv -> (problem)
    ocamltter 2.1.1 requires = 1.4.0
    Rejected candidates:
      tiny_json_conv.1.4.1: Incompatible with restriction: = 1.4.0
      tiny_json_conv.1.4.0: Requires ocaml >= 4.0.0 & < 4.3.0
      tiny_json_conv.1.3.0: Incompatible with restriction: = 1.4.0
      tiny_json_conv.1.2.0: Incompatible with restriction: = 1.4.0
      tiny_json_conv.1.1.0: Incompatible with restriction: = 1.4.0
      ...