Package base-flambda2

Failed to find a solution:

no platform:
2024-09-05 12:46.03 [INFO] Solving for ocaml-base-compiler, ocaml,
                           base-flambda2 using opam_repository_commit e90d00913cec22ea90c21ecb282c1f0b955a7959

2024-09-05 12:47.27 [INFO] base: eliminated all possibilities in 0.97 s

2024-09-05 12:47.27 [INFO] = base =

2024-09-05 12:47.27 [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 host-arch-x86_64.1
          menhir-secondary.20231231 ocaml-secondary-compiler.4.14.2
          base-flambda2&ocaml&ocaml-base-compiler system-mingw
          system-mingw|system-msvc
- base-flambda2 -> base-flambda2.base
    User requested = base
- ocaml -> (problem)
    User requested <= 5.1.0
    ocaml-variants 5.1.1+flambda2+trunk requires = 5.1.1
    Rejected candidates:
      ocaml.5.1.0: Incompatible with restriction: = 5.1.1
      ocaml.5.0.1: Incompatible with restriction: = 5.1.1
      ocaml.5.0.0: Incompatible with restriction: = 5.1.1
      ocaml.4.14.3: Incompatible with restriction: = 5.1.1
      ocaml.4.14.2: Incompatible with restriction: = 5.1.1
      ...
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.2.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.2.0~rc1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.2.0~beta2: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.2.0~beta1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.2.0~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