Build Log: melange-testing-library.0.1.0

Can't find all required versions. Selected: base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cmdliner.2.1.0 cppo.1.8.0 dune.3.20.2 dune-build-info.3.20.2 fix.20250919 melange.6.0.1-54 menhir.20250912 menhirCST.20250912 menhirLib.20250912 menhirSdk.20250912 merlin-extend.0.6.2 ocaml-base-compiler.5.4.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocamlfind.1.9.8 ppx_derivers.1.2.1 ppxlib.0.37.0 reason.3.17.2 reason-react.0.15.0 sexplib0.v0.17.0 stdlib-shims.0.3.0 ocaml&melange-testing-library ocaml-base-compiler ocaml-base-compiler system-mingw system-mingw|system-msvc&winpthreads ocaml base-domains ocaml-variants ocaml-base-compiler - melange-testing-library -> melange-testing-library.0.1.0 User requested = 0.1.0 - ocaml -> ocaml.5.4.0 User requested = 5.4.0 - ocaml-compiler -> ocaml-compiler.5.4.0 ocaml-base-compiler 5.4.0 requires = 5.4.0 - ocaml-variants -> (problem) Rejected candidates: ocaml-variants.5.5.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler ocaml-variants.5.4.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler ocaml-variants.5.4.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler ocaml-variants.5.4.0~rc1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler ocaml-variants.5.4.0~beta2+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler ... - reason-react-ppx -> (problem) reason-react 0.15.0 requires = 0.15.0 Rejected candidates: reason-react-ppx.0.16.0: Incompatible with restriction: = 0.15.0 reason-react-ppx.0.15.0: Requires ppxlib >= 0.33.0 & < 0.36.0 reason-react-ppx.0.14.1: Incompatible with restriction: = 0.15.0 reason-react-ppx.0.14.0: Incompatible with restriction: = 0.15.0 reason-react-ppx.0.13.0: Incompatible with restriction: = 0.15.0 ... - system-mingw -> (problem) No known implementations at all