Keyboard layout ca-fr: xkb-validated complains

nixos-install:
error: — Error ------------------------------------------------------------ nix-build
builder for ‘/nix/store/i92fb32xjgi5k1dp4v24fq65505pfwsp-xkb-validated.drv’ failed with exit code 1
error: — Error ------------------------------------------------------------ nix-build

services.xserver.layout = “ca-fr”

I am from Quebec and want to use the mostly used layout: french canadian.
Note that although Canadian-multilingual is like the official… pretty no one use it.

Guess I will install with ‘us’ for now.

Ok, I just re-install NixOS by using:
services.xserver.layout = “ca”
rather than “ca-fr” and it use the expected layout under Xorg.