Build Log: arb.0.4.1

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 conf-gmp.5 conf-mpfr.3 conf-pkg-config.4 csexp.1.5.2 ctypes.0.24.0 dune.3.20.2 dune-configurator.3.20.2 flint.0.4.1 integers.0.7.0 ocaml-base-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocamlfind.1.9.8 stdlib-shims.0.3.0 zarith.1.14 ocaml&arb ocaml-base-compiler ocaml-base-compiler system-mingw system-mingw|system-msvc&winpthreads ocaml base-domains ocaml-variants ocaml-base-compiler - arb -> arb.0.4.1 User requested = 0.4.1 - conf-flint -> (problem) flint 0.4.1 requires >= 3.0 Rejected candidates: conf-flint.1: Incompatible with restriction: >= 3.0 - 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 ... - system-mingw -> (problem) No known implementations at all