Package disml

Failed to find a solution:

no platform:
2025-05-16 17:20.50 [INFO] Solving for ocaml-base-compiler,
                           disml, constraints ocaml-base-compiler<=5.3.0,
                           disml=0.2.5 using opam_repository_commit cf409d95af00ff822422bd76b657ed213b661401

2025-05-16 17:20.52 [INFO] base: eliminated all possibilities in 0.94 s

2025-05-16 17:20.52 [INFO] = base =

2025-05-16 17:20.52 [INFO] Can't find all required versions.
Selected: angstrom.0.16.1 astring.0.8.5 async.v0.17.0 async_kernel.v0.17.0
          async_log.v0.17.0 async_rpc_kernel.v0.17.0 async_ssl.v0.17.0-1
          async_unix.v0.17.0 base.v0.17.2 base-bigarray.base base-bytes.base
          base-threads.base base-unix.base base64.3.5.1
          base_bigstring.v0.17.0 base_quickcheck.v0.17.0
          bigarray-compat.1.1.0 bigstringaf.0.10.0 bin_prot.v0.17.0
          capitalization.v0.17.0 checkseum.0.5.2 cmdliner.1.3.0
          cohttp-async.6.0.0 conduit.8.0.0 conduit-async.8.0.0
          conf-libffi.2.0.0 conf-libssl.4 conf-pkg-config.4 core.v0.17.1
          core_kernel.v0.17.0 core_unix.v0.17.1 cppo.1.8.0 csexp.1.5.2
          cstruct.6.2.0 ctypes.0.23.0 ctypes-foreign.0.23.0 domain-name.0.4.1
          dune.3.18.2 dune-configurator.3.18.2
          expect_test_helpers_core.v0.17.0 fieldslib.v0.17.0 fmt.0.10.0
          gel.v0.17.0 int_repr.v0.17.0 integers.0.7.0 ipaddr.5.6.0
          ipaddr-sexp.5.6.0 jane-street-headers.v0.17.0 jst-config.v0.17.0
          logs.0.8.0 macaddr.5.6.0 magic-mime.1.3.1 num.1.5-1 ocaml.5.5.0
          ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0
          ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8
          optint.0.3.0 parsexp.v0.17.0 ppx_assert.v0.17.0 ppx_base.v0.17.0
          ppx_bench.v0.17.0 ppx_bin_prot.v0.17.0 ppx_cold.v0.17.0
          ppx_compare.v0.17.0 ppx_custom_printf.v0.17.0 ppx_derivers.1.2.1
          ppx_deriving.6.1.0 ppx_deriving_yojson.3.10.0 ppx_diff.v0.17.0
          ppx_disable_unused_warnings.v0.17.0 ppx_enumerate.v0.17.0
          ppx_expect.v0.17.2 ppx_fields_conv.v0.17.0
          ppx_fixed_literal.v0.17.0 ppx_globalize.v0.17.0 ppx_hash.v0.17.0
          ppx_here.v0.17.0 ppx_ignore_instrumentation.v0.17.0
          ppx_inline_test.v0.17.0 ppx_jane.v0.17.0 ppx_let.v0.17.0
          ppx_log.v0.17.0 ppx_module_timer.v0.17.0 ppx_optcomp.v0.17.0
          ppx_optional.v0.17.0 ppx_pipebang.v0.17.0 ppx_sexp_conv.v0.17.0
          ppx_sexp_message.v0.17.0 ppx_sexp_value.v0.17.0 ppx_stable.v0.17.0
          ppx_stable_witness.v0.17.0 ppx_string.v0.17.0
          ppx_string_conv.v0.17.0 ppx_tydi.v0.17.0 ppx_typerep_conv.v0.17.0
          ppx_variants_conv.v0.17.0 ppxlib_jane.v0.17.2
          protocol_version_header.v0.17.0 re.1.12.0 seq.base
          sexp_pretty.v0.17.0 sexplib.v0.17.0 sexplib0.v0.17.0 spawn.v0.17.0
          splittable_random.v0.17.0 stdio.v0.17.0 stdlib-shims.0.3.0
          stringext.1.6.0 textutils.v0.17.0 time_now.v0.17.0 timezone.v0.17.0
          topkg.1.0.8 typerep.v0.17.1 uopt.v0.17.0 uri.4.4.0 uri-sexp.4.4.0
          uutf.1.0.4 variantslib.v0.17.0 disml&ocaml-base-compiler
          ocaml-variants ocaml-base-compiler ocaml-base-compiler
- cohttp -> cohttp.6.0.0
    cohttp-async 6.0.0 requires = 6.0.0
- decompress -> decompress.0.8.1
    disml 0.2.5 requires >= 0.8 & < 0.9
- disml -> disml.0.2.5
    User requested = 0.2.5
- http -> http.6.0.0
    cohttp 6.0.0 requires = 6.0.0
- ocaml-base-compiler -> ocaml-base-compiler.5.3.0
    User requested <= 5.3.0
- ocaml-compiler -> (problem)
    ocaml-base-compiler 5.3.0 requires = 5.3.0
    Rejected candidates:
      ocaml-compiler.5.5: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.4: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0: Requires ocaml = 5.3.0
      ocaml-compiler.5.3.0~rc1: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0~beta2: Incompatible with restriction: = 5.3.0
      ...
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.5.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+BER: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...
- ppxlib -> (problem)
    base_quickcheck v0.17.0 requires >= 0.28.0 & < 0.36.0
    ppx_deriving 6.1.0 requires >= 0.36.0
    Rejected candidates:
      ppxlib.0.36.0: Incompatible with restriction: >= 0.28.0 & < 0.36.0
      ppxlib.0.35.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.34.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.33.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.32.1: Incompatible with restriction: >= 0.36.0
      ...
- websocket-async -> (problem)
    disml 0.2.5 requires >= 2.12
    Rejected candidates:
      websocket-async.2.17: Requires cohttp-async >= 5.0.0 & < 6.0.0~~
      websocket-async.2.16: Requires cohttp-async >= 5.0.0 & < 6.0.0~
      websocket-async.2.15: Requires core >= v0.13.0 & < v0.15
      websocket-async.2.14: Requires core >= v0.13.0 & < v0.15
      websocket-async.2.13: Requires core < v0.13.0
      ...
- yojson -> (problem)
    disml 0.2.5 requires < 1.6.0
    ppx_deriving_yojson 3.10.0 requires >= 1.6.0
    Rejected candidates:
      yojson.2.2.2: Incompatible with restriction: < 1.6.0
      yojson.2.2.1: Incompatible with restriction: < 1.6.0
      yojson.2.2.0: Incompatible with restriction: < 1.6.0
      yojson.2.1.2: Incompatible with restriction: < 1.6.0
      yojson.2.1.1: Incompatible with restriction: < 1.6.0
      ...