Update to Symfony 3.4 blocked

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Expected behavior

composer update works

Actual behavior

PHP Fatal error:  Uncaught Matthias\SymfonyServiceDefinitionValidator\Exception\InvalidServiceDefinitionsException: Service definition validation errors (11):
- services_resetter: Type-hint "Traversable" requires this argument to be a reference to a service or an inline service definition
- session.storage.native: Argument of type "string" should have been an array
- security.role_hierarchy: Argument of type "string" should have been an array
- doctrine.dbal.connection_factory: Argument of type "string" should have been an array
- doctrine: Argument of type "string" should have been an array
- zikula_core.bridge.http_foundation.zikula_session_storage_doctrine: Argument of type "string" should have been an array
- zikula_core.bridge.http_foundation.zikula_session_storage_file: Argument of type "string" should have been an array
- fos_js_routing.controller: Argument of type "string" should have been an array
- liip_imagine.filter.configuration: Argument of type "string" should have been an array

Steps to reproduce

Checkout 2.0 branch and execute composer update

Further resources

matthiasnoback/symfony-service-definition-validator#29 (comment)