Having an issue with Civi 4.7 on Drupal 8 whereby, when CiviCRM is installed, attempts to install any other modules result in the error:
Call to undefined method Symfony\Component\DependencyInjection\Definition::setFactory() in /Applications/MAMP/htdocs/core/lib/Drupal/Core/DependencyInjection/YamlFileLoader.php on line 190
Which seems to be because Drupal 8 is trying to use the copy of Symfony bundled with Civi, and not the one it comes bundled with.
Seems to relate in some way to the discussion here:
I'm not too sure on the best way to fix it though - so thought I'd best raise it as an issue.
|Expose all major CiviCRM repos as Composer packages||Open||Unassigned||