eris-lwt 1.0.0

Error log

The package failed to build. The error log from opam follows.

Opam plugin "depext" may require upgrading/reinstalling. Reinstall the plugin on the current switch? [Y/n] y
The following actions will be performed:
  - recompile opam-depext 1.2.1-1

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved opam-depext.1.2.1-1  (cached)
-> removed   opam-depext.1.2.1-1
-> installed opam-depext.1.2.1-1
Done.

<><> opam-depext.1.2.1-1 installed successfully <><><><><><><><><><><><><><><><>
=> opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
# Run eval $(opam env) to update the current shell environment

<><> Carrying on to "opam depext -viy eris-lwt.1.0.0 yojson.2.1.2 topkg.1.0.7 stdlib-shims.0.3.0 sexplib0.v0.16.0 seq.base sedlex.3.2 ptime.1.1.0 ppxlib.0.31.0 ppx_derivers.1.2.1 ocplib-endian.1.2 ocamlfind.1.9.6 ocamlbuild.0.14.3 ocaml-compiler-libs.v0.12.4 monocypher.0.1.0 menhirSdk.20231231 menhirLib.20231231 menhirCST.20231231 menhir.20231231 lwt.5.7.0 js_of_ocaml-compiler.5.6.0 js_of_ocaml.5.6.0 integers.0.7.0 gen.1.1 fmt.0.9.0 eris.1.0.0 dune-configurator.3.13.0 dune.3.10.0 ctypes.0.21.1 csexp.1.5.2 crunch.3.3.1 cppo.1.6.9 conf-zig.1 cmdliner.1.2.0 bigarray-compat.1.1.0 base32.1.0.0 base-bytes.base" 

You are using opam 2.1+, where external dependency handling has been integrated: consider calling opam directly, the 'depext' plugin interface is provided for backwards compatibility only
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
[ERROR] No solution for eris-lwt.1.0.0 & yojson.2.1.2 & topkg.1.0.7 & stdlib-shims.0.3.0 & sexplib0.v0.16.0 & seq.base & sedlex.3.2 & ptime.1.1.0 & ppxlib.0.31.0 & ppx_derivers.1.2.1 & ocplib-endian.1.2 & ocamlfind.1.9.6 & ocamlbuild.0.14.3 & ocaml-compiler-libs.v0.12.4 & monocypher.0.1.0 & menhirSdk.20231231 & menhirLib.20231231 & menhirCST.20231231 & menhir.20231231 & lwt.5.7.0 & js_of_ocaml-compiler.5.6.0 & js_of_ocaml.5.6.0 & integers.0.7.0 & gen.1.1 & fmt.0.9.0 & eris.1.0.0 & dune-configurator.3.13.0 & dune.3.10.0 & ctypes.0.21.1 & csexp.1.5.2 & crunch.3.3.1 & cppo.1.6.9 & conf-zig.1 & cmdliner.1.2.0 & bigarray-compat.1.1.0 & base32.1.0.0 & base-bytes.base:   * Missing dependency:
            - conf-zig
            depends on the unavailable system package 'zig'. Use `--no-depexts' to attempt installation anyway, or it is possible that a depext package name in the opam file is incorrect.


Command failed: opam --cli=2.1 list --readonly --external '--resolve=eris-lwt.1.0.0,yojson.2.1.2,topkg.1.0.7,stdlib-shims.0.3.0,sexplib0.v0.16.0,seq.base,sedlex.3.2,ptime.1.1.0,ppxlib.0.31.0,ppx_derivers.1.2.1,ocplib-endian.1.2,ocamlfind.1.9.6,ocamlbuild.0.14.3,ocaml-compiler-libs.v0.12.4,monocypher.0.1.0,menhirSdk.20231231,menhirLib.20231231,menhirCST.20231231,menhir.20231231,lwt.5.7.0,js_of_ocaml-compiler.5.6.0,js_of_ocaml.5.6.0,integers.0.7.0,gen.1.1,fmt.0.9.0,eris.1.0.0,dune-configurator.3.13.0,dune.3.10.0,ctypes.0.21.1,csexp.1.5.2,crunch.3.3.1,cppo.1.6.9,conf-zig.1,cmdliner.1.2.0,bigarray-compat.1.1.0,base32.1.0.0,base-bytes.base' returned 20