rock@r2d2 /var/www/html/swl $ php bin/console
PHP Fatal error:  Uncaught exception 'LogicException' with message 'You must install symfony/security-acl in order to use the ACL functionality.' in /var/www/html/swl/vendor/symfony/symfony/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php:123
Stack trace:
#0 /var/www/html/swl/vendor/symfony/symfony/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php(101): Symfony\Bundle\SecurityBundle\DependencyInjection\SecurityExtension->aclLoad(Array, Object(Symfony\Component\DependencyInjection\ContainerBuilder))
#1 /var/www/html/swl/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/MergeExtensionConfigurationPass.php(59): Symfony\Bundle\SecurityBundle\DependencyInjection\SecurityExtension->load(Array, Object(Symfony\Component\DependencyInjection\ContainerBuilder))
#2 /var/www/html/swl/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/MergeExtensionConfigurationPass.php(39): Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfi in /var/www/html/swl/vendor/symfony/symfony/src/Symfony/Bundle/SecurityBundle/DependencyInjection/SecurityExtension.php on line 123