Package dot-merlin-reader

Failed to find a solution:

no platform:
2025-02-03 21:58.38 [INFO] Solving for ocaml-base-compiler, ocaml,
                           dot-merlin-reader using opam_repository_commit f872de4b7a2f4b7ccc24dfe491575cabe8c9fabe

2025-02-03 22:00.06 [INFO] base: eliminated all possibilities in 1.44 s

2025-02-03 22:00.06 [INFO] = base =

2025-02-03 22:00.06 [INFO] Can't find all required versions.
Selected: base-threads.base base-unix.base dune.3.17.2 ocaml-config.3
          ocaml-options-vanilla.1 ocamlfind.1.9.6
          dot-merlin-reader&ocaml&ocaml-base-compiler ocaml-variants
          ocaml-base-compiler ocaml ocaml-base-compiler
- dot-merlin-reader -> dot-merlin-reader.5.1
    User requested = 5.1
- merlin-lib -> (problem)
    dot-merlin-reader 5.1 requires >= 5.1
    Rejected candidates:
      merlin-lib.5.4.1-503: Requires ocaml >= 5.3 & < 5.4
      merlin-lib.5.4-503: Requires ocaml >= 5.3 & < 5.4
      merlin-lib.5.3-502: Requires ocaml >= 5.2 & < 5.3
      merlin-lib.5.3~5.3preview: Requires ocaml >= 5.3 & < 5.4
      merlin-lib.5.2.1-502: Requires ocaml >= 5.2 & < 5.3
      ...
- ocaml -> ocaml.5.1.1
    User requested <= 5.1.1
- ocaml-base-compiler -> ocaml-base-compiler.5.3.0
    User requested >= 4.04.1
- ocaml-compiler -> (problem)
    ocaml-base-compiler 5.3.0 requires = 5.3.0
    Rejected candidates:
      ocaml-compiler.5.3.0: Requires ocaml = 5.3.0
      ocaml-compiler.5.3.0~rc1: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0~beta2: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0~beta1: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0~alpha1: Incompatible with restriction: = 5.3.0
      ...
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.4.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0~rc1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0~beta2+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...