Package dkml-base-compiler

Failed to find a solution:

no platform:
2024-01-29 14:45.23 [INFO] Solving for ocaml-base-compiler, ocaml,
                           dkml-base-compiler using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 14:45.28 [INFO] base: eliminated all possibilities in 2.36 s

2024-01-29 14:45.28 [INFO] = base =

2024-01-29 14:45.28 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-threads.base base-unix.base ocaml-config.3
          dkml-base-compiler&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler
- dkml-base-compiler -> dkml-base-compiler.4.12.1~v1.0.2~prerel7
    User requested = 4.12.1~v1.0.2~prerel7
- dkml-runtime-common -> dkml-runtime-common.1.0.2~prerel7
    dkml-base-compiler 4.12.1~v1.0.2~prerel7 requires = 1.0.2~prerel7
- ocaml -> ocaml.4.12.1
    User requested <= 5.1.0
    dkml-base-compiler 4.12.1~v1.0.2~prerel7 requires = 4.12.1
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.1.1: In same conflict class (ocaml-core-compiler) as dkml-base-compiler
      ocaml-base-compiler.5.1.1~rc1: In same conflict class (ocaml-core-compiler) as dkml-base-compiler
      ocaml-base-compiler.5.1.0: In same conflict class (ocaml-core-compiler) as dkml-base-compiler
      ocaml-base-compiler.5.1.0~rc3: In same conflict class (ocaml-core-compiler) as dkml-base-compiler
      ocaml-base-compiler.5.1.0~rc2: In same conflict class (ocaml-core-compiler) as dkml-base-compiler
      ...