Build Log: cohttp-eio.6.2.0

Can't find all required versions. Selected: angstrom.0.16.1 base-domains.base base-threads.base base-unix.base base64.3.5.2 bigstringaf.0.10.0 cohttp.6.2.0 csexp.1.5.2 domain-name.0.5.0 dune.3.20.2 dune-configurator.3.20.2 fmt.0.11.0 http.6.2.0 ipaddr.5.6.1 logs.0.10.0 macaddr.5.6.1 ocaml-base-compiler.5.4.0 ocaml-compiler-libs.v0.12.4 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 ppx_derivers.1.2.1 ppx_sexp_conv.v0.16.0 ptime.1.2.0 re.1.14.0 stdlib-shims.0.3.0 stringext.1.6.0 topkg.1.1.1 uri.4.4.0 uri-sexp.4.4.0 ocaml&cohttp-eio ocaml-variants ocaml-base-compiler ocaml-variants ocaml-base-compiler - base -> base.v0.16.4 ppx_sexp_conv v0.16.0 requires >= v0.16 & < v0.17 - cohttp-eio -> cohttp-eio.6.2.0 User requested = 6.2.0 - eio -> (problem) cohttp-eio 6.2.0 requires >= 0.12 Rejected candidates: eio.1.3: Requires ocaml >= 5.2.0 eio.1.2: Requires ocaml >= 5.1.0 eio.1.1: Requires ocaml >= 5.1.0 eio.1.0: Requires ocaml >= 5.1.0 eio.0.15: Requires ocaml >= 5.1.0 ... - ocaml -> ocaml.4.14.2 User requested = 4.14.2 - ocaml-compiler -> (problem) ocaml-base-compiler 5.4.0 requires = 5.4.0 Rejected candidates: ocaml-compiler.5.5: Incompatible with restriction: = 5.4.0 ocaml-compiler.5.4.0: Requires ocaml = 5.4.0 ocaml-compiler.5.4.0~rc1: Incompatible with restriction: = 5.4.0 ocaml-compiler.5.4.0~beta2: Incompatible with restriction: = 5.4.0 ocaml-compiler.5.4.0~beta1: Incompatible with restriction: = 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 ... - ppxlib -> ppxlib.0.35.0 ppx_sexp_conv v0.16.0 requires >= 0.28.0 & < 0.36.0 - sexplib0 -> sexplib0.v0.16.0 base v0.16.4 requires >= v0.16 & < v0.17