graphics 4.06.0

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 ocapic.3.3 ocamlclean.2.3 ocamlbuild.0.14.3 obytelib.1.6 graphics.4.06.0 conf-pkg-config.3 conf-libX11.1 camlp4.4.06+1" 

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 ocapic.3.3 & ocamlclean.2.3 & ocamlbuild.0.14.3 & obytelib.1.6 & graphics.4.06.0 & conf-pkg-config.3 & conf-libX11.1 & camlp4.4.06+1:   * Incompatible packages:
            - (invariant) -> ocaml-base-compiler = 4.06.1
            - graphics = 4.06.0 -> ocaml = 4.06.0 -> ocaml-variants >= 4.06.0
            You can temporarily relax the switch invariant with `--update-invariant'
          * Missing dependency:
            - graphics = 4.06.0 -> ocaml = 4.06.0 -> ocaml-variants >= 4.06.0 -> ocaml-beta
            unmet availability conditions: 'enable-ocaml-beta-repository'


Command failed: opam --cli=2.1 list --readonly --external '--resolve=ocapic.3.3,ocamlclean.2.3,ocamlbuild.0.14.3,obytelib.1.6,graphics.4.06.0,conf-pkg-config.3,conf-libX11.1,camlp4.4.06+1' returned 20