How do I install the commerceguys libraries? While installing Drupal Commerce 8.x-2.x-dev on Drupal 8.0.0-rc4, I'm greeted by the announcements.

Commerce Price requires the commerceguys/intl library.
Commerce Tax requires the commerceguys/tax library.
Address requires the commerceguys/addressing library.

How do I that? It's probably so obvious that I'm overlooking it.
Download composer_manager into your modules directory.

From the Drupal root directory, initialize composer_manager, and run it for the first time:

php modules/composer_manager/scripts/init.php

composer drupal-update

composer dump-autoload


This will download the required libraries into the root vendor/ directory.

Enable modules now.