Package bt

Failed to find a solution:

no platform:
2024-09-12 08:30.23 [INFO] Solving for ocaml-base-compiler, ocaml,
                           bt using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 08:30.30 [INFO] base: eliminated all possibilities in 3.43 s

2024-09-12 08:30.30 [INFO] = base =

2024-09-12 08:30.30 [INFO] Can't find all required versions.
Selected: angstrom.0.16.0 base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base bigstringaf.0.10.0 bitstring.4.1.0
          cmdliner.1.3.0 conf-gmp.4 conf-gmp-powm-sec.3 conf-libssl.4
          conf-pkg-config.3 conf-zlib.1 cryptokit.1.20 csexp.1.5.2
          dune.3.16.0 dune-configurator.3.16.0 host-arch-x86_64.1
          ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0
          ocamlbuild.0.15.0 ocamlfind.1.9.6 ounit2.2.2.7 qcheck.0.22
          qcheck-core.0.22 qcheck-ounit.0.22 seq.base ssl.0.7.0
          stdlib-shims.0.3.0 stringext.1.6.0 uri.4.4.0 zarith.1.14
          bt&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler system-mingw ocaml base-domains ocaml
          ocaml-base-compiler
- bt -> bt.0.2
    User requested = 0.2
- cohttp -> (problem)
    bt 0.2 requires >= 0.11.2 & < 0.99
    Rejected candidates:
      cohttp.6.0.0~beta2: Incompatible with restriction: >= 0.11.2 & < 0.99
      cohttp.6.0.0~alpha2: Incompatible with restriction: >= 0.11.2 & < 0.99
      cohttp.6.0.0~alpha1: Incompatible with restriction: >= 0.11.2 & < 0.99
      cohttp.6.0.0~alpha0: Incompatible with restriction: >= 0.11.2 & < 0.99
      cohttp.5.3.1: Incompatible with restriction: >= 0.11.2 & < 0.99
      ...
- lwt -> (problem)
    bt 0.2 requires < 2.4.7
    Rejected candidates:
      lwt.5.7.0: Incompatible with restriction: < 2.4.7
      lwt.5.6.1: Incompatible with restriction: < 2.4.7
      lwt.5.6.0: Incompatible with restriction: < 2.4.7
      lwt.5.5.0: Incompatible with restriction: < 2.4.7
      lwt.5.4.2: Incompatible with restriction: < 2.4.7
      ...
- ocaml -> ocaml.5.1.1
    User requested <= 5.1.1
- ocaml-base-compiler -> ocaml-base-compiler.5.1.1
    User requested >= 4.04.1
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires >= 5.1.1~ & < 5.1.2~
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied