The following dependencies couldn't be met:
  - graphics → ocaml < 4.09
      base of this switch (use `--unlock-base' to force)
  - camlimages → ocaml < 4.06.0
      base of this switch (use `--unlock-base' to force)
  - camlimages → omake < 0.10 → ocaml < 4.07.0
      base of this switch (use `--unlock-base' to force)
Your request can't be satisfied:
  - camlimages >= 5.0.0 is in conflict with graphics >= 5.0.0

No solution found, exiting