Package base-flambda2

Failed to find a solution:

no platform:
2025-05-16 17:09.47 [INFO] Solving for ocaml-base-compiler,
                           base-flambda2, constraints ocaml-base-compiler<=5.3.0,
                           base-flambda2=base using opam_repository_commit cf409d95af00ff822422bd76b657ed213b661401

2025-05-16 17:09.49 [INFO] base: eliminated all possibilities in 0.55 s

2025-05-16 17:09.49 [INFO] = base =

2025-05-16 17:09.49 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-threads.base base-unix.base
          conf-autoconf.0.2 dune-secondary.3.16.0 menhir-secondary.20231231
          ocaml-config.3 ocaml-secondary-compiler.4.14.2
          base-flambda2&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler system-mingw system-mingw|system-msvc
- base-flambda2 -> base-flambda2.base
    User requested = base
- ocaml -> ocaml.5.1.1
    ocaml-variants 5.1.1+flambda2+trunk requires = 5.1.1
- ocaml-base-compiler -> (problem)
    User requested <= 5.3.0
    Rejected candidates:
      ocaml-base-compiler.5.3.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.3.0~rc1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.3.0~beta2: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.3.0~beta1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.3.0~alpha1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ...
- ocaml-variants -> ocaml-variants.5.1.1+flambda2+trunk
    base-flambda2 base requires = 5.1.1+flambda2 | = 5.1.1+flambda2+trunk
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied