Package lp

Failed to find a solution:

no platform:
2026-02-04 14:50.46 [INFO] Solving for ocaml-base-compiler,
                           lp, constraints ocaml-base-compiler<=5.4.0,
                           lp=0.5.0 using opam_repository_commit 45c04602c2fc908af6d1b17ba39c7517d58cb274

2026-02-04 14:50.46 [INFO] base: eliminated all possibilities in 0.24 s

2026-02-04 14:50.46 [INFO] = base =

2026-02-04 14:50.46 [INFO] Can't find all required versions.
Selected: base-threads.base base-unix.base dune.3.21.0 menhir.20260122
          menhirCST.20260122 menhirGLR.20260122 menhirLib.20260122
          menhirSdk.20260122 ocaml.5.6.0 lp&ocaml-base-compiler
          ocaml-base-compiler
- lp -> lp.0.5.0
    User requested = 0.5.0
- ocaml-base-compiler -> (problem)
    User requested <= 5.4.0
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires = 5.6.0
    Rejected candidates:
      ocaml-base-compiler.5.4.0: Incompatible with restriction: = 5.6.0
      ocaml-base-compiler.5.4.0~rc1: Incompatible with restriction: = 5.6.0
      ocaml-base-compiler.5.4.0~beta2: Incompatible with restriction: = 5.6.0
      ocaml-base-compiler.5.4.0~beta1: Incompatible with restriction: = 5.6.0
      ocaml-base-compiler.5.4.0~alpha1: Incompatible with restriction: = 5.6.0
      ...
- odoc -> (problem)
    dune 3.21.0 requires not(< 2.0.1)
    lp 0.5.0 requires >= 2.4.4 & < 3.0.0
    Rejected candidates:
      odoc.3.1.0: Incompatible with restriction: >= 2.4.4 & < 3.0.0
      odoc.3.0.0: Incompatible with restriction: >= 2.4.4 & < 3.0.0
      odoc.2.1.1: Incompatible with restriction: >= 2.4.4 & < 3.0.0
      odoc.1.5.3: Incompatible with restriction: not(< 2.0.1)