jupyter 2.7.9

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 1.2.3

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved opam-depext.1.2.3  (cached)
-> removed   opam-depext.1.2.3
-> installed opam-depext.1.2.3
Done.

<><> opam-depext.1.2.3 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 jupyter.2.7.9 zmq-lwt.5.3.0 zmq.5.3.0 zarith.1.14 yojson.2.2.2 uuidm.0.9.8 topkg.1.0.7 stdlib-shims.0.3.0 stdint.0.7.2 sexplib0.v0.15.1 seq.base ppxlib.0.33.0 ppx_yojson_conv_lib.v0.15.0 ppx_yojson_conv.v0.15.1 ppx_js_style.v0.15.0 ppx_derivers.1.2.1 octavius.1.2.2 ocplib-endian.1.2 ocamlfind.1.9.6 ocamlbuild.0.15.0 ocaml-compiler-libs.v0.12.4 lwt_ppx.2.1.0 lwt.5.7.0 logs.0.7.0 host-arch-x86_64.1 dune-configurator.3.16.0 dune.3.16.0 csexp.1.5.2 cryptokit.1.20 cppo.1.7.0 conf-zmq.0.1 conf-zlib.1 conf-pkg-config.3 conf-gmp-powm-sec.3 conf-gmp.4 base64.3.5.1 base-bytes.base base.v0.15.1" 

Since version 2.1, opam now handles external dependencies alongside OCaml ones, and the `depext` plugin interface is provided for backwards compatibility only. Consider using your usual `opam install` command to install both OCaml and system dependencies, or `opam install <pkg> --depext-only` if you want to only install external dependencies.
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
[ERROR] No solution for jupyter.2.7.9 & zmq-lwt.5.3.0 & zmq.5.3.0 & zarith.1.14 & yojson.2.2.2 & uuidm.0.9.8 & topkg.1.0.7 & stdlib-shims.0.3.0 & stdint.0.7.2 & sexplib0.v0.15.1 & seq.base & ppxlib.0.33.0 & ppx_yojson_conv_lib.v0.15.0 & ppx_yojson_conv.v0.15.1 & ppx_js_style.v0.15.0 & ppx_derivers.1.2.1 & octavius.1.2.2 & ocplib-endian.1.2 & ocamlfind.1.9.6 & ocamlbuild.0.15.0 & ocaml-compiler-libs.v0.12.4 & lwt_ppx.2.1.0 & lwt.5.7.0 & logs.0.7.0 & host-arch-x86_64.1 & dune-configurator.3.16.0 & dune.3.16.0 & csexp.1.5.2 & cryptokit.1.20 & cppo.1.7.0 & conf-zmq.0.1 & conf-zlib.1 & conf-pkg-config.3 & conf-gmp-powm-sec.3 & conf-gmp.4 & base64.3.5.1 & base-bytes.base & base.v0.15.1:   * Incompatible packages:
            - (invariant) -> ocaml-base-compiler = 4.14.2
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> dkml-base-compiler
            You can temporarily relax the switch invariant with `--update-invariant'
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-base-compiler < 3.07+1 | ocaml-system < 3.07+1 | ocaml-variants < 3.8~
            not available because the package is pinned to version 4.14.2
            unmet availability conditions: 'sys-ocaml-version = "3.07"'
            no matching version
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-base-compiler = 3.07+1 | ocaml-system = 3.07+1 | ocaml-variants < 3.8~
            not available because the package is pinned to version 4.14.2
            unmet availability conditions: 'sys-ocaml-version = "3.07+1"'
            no matching version
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-base-compiler = 3.07+2 | ocaml-system = 3.07+2 | ocaml-variants < 3.8~
            not available because the package is pinned to version 4.14.2
            unmet availability conditions: 'sys-ocaml-version = "3.07+2"'
            no matching version
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-base-compiler = 3.08.0 | ocaml-system < 3.08.1~ | ocaml-variants < 3.08.1~
            not available because the package is pinned to version 4.14.2
            unmet availability conditions, e.g. 'sys-ocaml-version = "3.08.0"'
            no matching version
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-base-compiler = 3.08.1 | ocaml-system < 3.08.2~ | ocaml-variants < 3.08.2~
            not available because the package is pinned to version 4.14.2
            unmet availability conditions, e.g. 'sys-ocaml-version = "3.08.1"'
            no matching version
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-base-compiler = 3.08.2 | ocaml-system < 3.08.3~ | ocaml-variants < 3.08.3~
            not available because the package is pinned to version 4.14.2
            unmet availability conditions, e.g. 'sys-ocaml-version = "3.08.2"'
            no matching version
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-base-compiler = 3.08.3 | ocaml-system < 3.08.4~ | ocaml-variants < 3.08.4~
            not available because the package is pinned to version 4.14.2
            unmet availability conditions, e.g. 'sys-ocaml-version = "3.08.3"'
            no matching version
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-base-compiler = 3.08.4 | ocaml-system < 3.08.5~ | ocaml-variants < 3.08.5~
            not available because the package is pinned to version 4.14.2
            unmet availability conditions, e.g. 'sys-ocaml-version = "3.08.4"'
            no matching version
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-base-compiler = 3.09.0 | ocaml-system < 3.09.1~ | ocaml-variants < 3.09.1~
            not available because the package is pinned to version 4.14.2
            unmet availability conditions, e.g. 'sys-ocaml-version = "3.09.0"'
            no matching version
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-variants >= 4.05.0 -> ocaml-beta
            unmet availability conditions: 'enable-ocaml-beta-repository'
          * Missing dependency:
            - jupyter = 2.7.9 -> ocaml < 4.14.1 -> ocaml-variants >= 4.05.0 -> system-msvc
            unmet availability conditions: 'os = "win32"'


Command failed: opam --cli=2.1 list --readonly --external '--resolve=jupyter.2.7.9,zmq-lwt.5.3.0,zmq.5.3.0,zarith.1.14,yojson.2.2.2,uuidm.0.9.8,topkg.1.0.7,stdlib-shims.0.3.0,stdint.0.7.2,sexplib0.v0.15.1,seq.base,ppxlib.0.33.0,ppx_yojson_conv_lib.v0.15.0,ppx_yojson_conv.v0.15.1,ppx_js_style.v0.15.0,ppx_derivers.1.2.1,octavius.1.2.2,ocplib-endian.1.2,ocamlfind.1.9.6,ocamlbuild.0.15.0,ocaml-compiler-libs.v0.12.4,lwt_ppx.2.1.0,lwt.5.7.0,logs.0.7.0,host-arch-x86_64.1,dune-configurator.3.16.0,dune.3.16.0,csexp.1.5.2,cryptokit.1.20,cppo.1.7.0,conf-zmq.0.1,conf-zlib.1,conf-pkg-config.3,conf-gmp-powm-sec.3,conf-gmp.4,base64.3.5.1,base-bytes.base,base.v0.15.1' --color=never returned 20