Package ezjsonm

Failed to find a solution:

no platform:
2024-09-12 07:56.11 [INFO] Solving for ocaml-base-compiler, ocaml,
                           ezjsonm using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 07:56.17 [INFO] base: eliminated all possibilities in 3.08 s

2024-09-12 07:56.17 [INFO] = base =

2024-09-12 07:56.17 [INFO] Can't find all required versions.
Selected: base-bytes.base base-ocamlbuild.base base-threads.base
          base-unix.base cppo.1.7.0 dune.3.16.0 hex.1.3.0 host-arch-x86_64.1
          jsonm.1.0.1 ocaml-config.3 ocaml-secondary-compiler.4.14.2
          ocamlbuild.0 ocamlfind.1.9.6 ocamlfind-secondary.1.9.6
          ocplib-endian.1.1 result.1.5 sexplib.113.24.00 topkg.1.0.0
          uchar.0.0.2 uutf.1.0.2 ezjsonm&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler system-mingw
          system-mingw|system-msvc ocaml&ocamlfind-secondary
- cstruct -> cstruct.3.0.2
    hex 1.3.0 requires >= 1.7.0 & < 5.0.0
- ezjsonm -> ezjsonm.0.4.2
    User requested = 0.4.2
- jbuilder -> jbuilder.1.0+beta20.2
    dune 3.16.0 requires not(= transition)
- ocaml -> ocaml.4.02.4
    User requested <= 5.1.1
    base-ocamlbuild base requires >= 3.10 & < 4.03
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.2.0: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~rc1: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~beta2: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~beta1: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~alpha1: Requires ocaml = 5.2.0
      ...
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied