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equations 1.0~beta2+8.7 Not compatible 👼

Context

# Packages matching: installed
# Name                # Installed # Synopsis
base-bigarray         base
base-domains          base
base-nnp              base        Naked pointers prohibited in the OCaml heap
base-threads          base
base-unix             base
conf-gmp              4           Virtual package relying on a GMP lib system installation
coq                   dev         The Coq Proof Assistant
coq-core              dev         The Coq Proof Assistant -- Core Binaries and Tools
coq-stdlib            dev         The Coq Proof Assistant -- Standard Library
coqide-server         dev         The Coq Proof Assistant, XML protocol server
dune                  3.12.2      Fast, portable, and opinionated build system
ocaml                 5.0.0       The OCaml compiler (virtual package)
ocaml-base-compiler   5.0.0       Official release 5.0.0
ocaml-config          3           OCaml Switch Configuration
ocaml-options-vanilla 1           Ensure that OCaml is compiled with no special options enabled
ocamlfind             1.9.6       A library manager for OCaml
zarith                1.13        Implements arithmetic and logical operations over arbitrary-precision integers
# opam file:
opam-version: "2.0"
authors: [ "Matthieu Sozeau <matthieu.sozeau@inria.fr>" "Cyprien Mangin <cyprien.mangin@m4x.org>" ]
dev-repo: "git+https://github.com/mattam82/Coq-Equations.git"
maintainer: "matthieu.sozeau@inria.fr"
homepage: "https://mattam82.github.io/Coq-Equations"
bug-reports: "https://github.com/mattam82/Coq-Equations/issues"
license: "LGPL-2.1-only"
build: [
  ["coq_makefile" "-f" "_CoqProject" "-o" "Makefile"]
  [make "-j%{jobs}%"]
]
install: [
  [make "install"]
]
remove: ["rm" "-R" "%{lib}%/coq/user-contrib/Equations"]
depends: [
  "ocaml"
  "coq" {>= "8.7" & < "8.8"}
]
synopsis: "A function definition package for Coq"
flags: light-uninstall
url {
  src:
    "https://github.com/mattam82/Coq-Equations/archive/v1.0-8.7-beta2.tar.gz"
  checksum: "md5=d281835d0762424b23c9aebf4a6d8921"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-equations.1.0~beta2+8.7 coq.dev

Return code

5120

Output

[NOTE] Package coq is already installed (current version is dev).
[ERROR] Package conflict!
  * No agreement on the version of coq:
    - coq >= dev
    - coq-equations = 1.0~beta2+8.7 -> coq < 8.8
  * No agreement on the version of ocaml:
    - (invariant) -> ocaml-base-compiler = 5.0.0 -> ocaml = 5.0.0
    - coq-equations = 1.0~beta2+8.7 -> coq < 8.8 -> ocaml < 4.05.0
    You can temporarily relax the switch invariant with `--update-invariant'
  * No agreement on the version of ocaml-base-compiler:
    - (invariant) -> ocaml-base-compiler = 5.0.0
    - coq-equations = 1.0~beta2+8.7 -> coq < 8.8 -> ocaml < 4.05.0 -> ocaml-base-compiler = 3.08.1
  * Missing dependency:
    - coq-equations = 1.0~beta2+8.7 -> coq < 8.8 -> ocaml < 4.05.0 -> ocaml-variants -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
No solution found, exiting

Dry install without Coq/switch base, to test if the problem was incompatibility with the current Coq/OCaml version:

Command: opam remove -y coq; opam install -y --show-action --unlock-base coq-equations.1.0~beta2+8.7
Return code: 0

Install dependencies

Command: true
Return code: 0
Duration: 0 s

Install 🚀

Command: true
Return code: 0
Duration: 0 s

Installation size

No files were installed.

Uninstall 🧹

Command: true
Return code: 0
Missing removes: none
Wrong removes: none