# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian [ERROR] No solution for camlhighlight.5.0: The following dependencies couldn't be met: - camlhighlight -> tyxml (>= 3.6 & < 4.0) -> uutf < 1.0.0 -> ocaml < 4.06.0 base of this switch (use `--unlock-base' to force) - camlhighlight -> tyxml (>= 3.6 & < 4.0) -> ocamlnet = 3.6.0 -> ocaml < 4.01.0 base of this switch (use `--unlock-base' to force) - camlhighlight -> tyxml (>= 3.6 & < 4.0) -> ocaml < 4.06.0 base of this switch (use `--unlock-base' to force) Your request can't be satisfied: - No available version of tyxml satisfies the constraints Command failed: opam list --readonly --external --resolve=camlhighlight.5.0 returned 20 Command 'docker run --rm -i -v opam-health-check-default-dune-cache:/home/opam/.cache/dune opam-health-check-default-4.06.1 bash' failed.