ocaml-base-compiler 4.10.1

Error log

The package failed to build. The error log from opam follows.

[NOTE] Package dune is already installed (current version is 3.17.2).
[NOTE] Package ocamlfind is already installed (current version is 1.9.8).
[ERROR] Package conflict!
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.10.2
    - noCanren < 0.3.0~alpha1 -> ocaml = 4.10.1 -> ocaml-variants < 4.10.2~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - noCanren < 0.3.0~alpha1 -> ocaml = 4.10.1 -> ocaml-variants < 4.10.2~ -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'

No solution found, exiting