Package gpr

Failed to find a solution:

no platform:
2024-01-29 14:56.43 [INFO] Solving for ocaml-base-compiler, ocaml,
                           gpr using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 14:56.49 [INFO] base: eliminated all possibilities in 3.25 s

2024-01-29 14:56.49 [INFO] = base =

2024-01-29 14:56.49 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base conf-gsl.2 conf-pkg-config.3
          csexp.1.5.2 dune.3.13.0 dune-configurator.3.13.0 gsl.1.25.0
          ocaml-config.3 ocaml-options-vanilla.1 ocamlbuild.0.14.3
          ocamlfind.1.9.6 gpr&ocaml&ocaml-base-compiler core
          ocaml-base-compiler ocaml-base-compiler ocaml base-domains ocaml
          ocaml-base-compiler
- core -> (problem)
    core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core|core core requires = 113.00.00
    Rejected candidates:
      core.v0.16.2: Incompatible with restriction: = 113.00.00
      core.v0.16.1: Incompatible with restriction: = 113.00.00
      core.v0.16.0: Requires ocaml >= 4.14.0 & < 5.1~
      core.v0.15.1: Requires ocaml >= 4.11.0 & < 5.1~
      core.v0.15.0: Requires ocaml >= 4.11.0 & < 5.1~
      ...
- gpr -> gpr.1.2.2
    User requested = 1.2.2
- lacaml -> (problem)
    gpr 1.2.2 requires >= 9.3.2 & < 10.0.0
    Rejected candidates:
      lacaml.11.0.10: Incompatible with restriction: >= 9.3.2 & < 10.0.0
      lacaml.11.0.8: Incompatible with restriction: >= 9.3.2 & < 10.0.0
      lacaml.11.0.7: Incompatible with restriction: >= 9.3.2 & < 10.0.0
      lacaml.11.0.6: Incompatible with restriction: >= 9.3.2 & < 10.0.0
      lacaml.11.0.5: Incompatible with restriction: >= 9.3.2 & < 10.0.0
      ...
- ocaml -> ocaml.5.1.0
    User requested <= 5.1.0
- ocaml-base-compiler -> ocaml-base-compiler.5.1.0
    User requested >= 4.04.1
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires >= 5.1.0~ & < 5.1.1~