http://symfony.com/doc/master/setup/built_in_web_server.html Command ```php bin/console server:start --env=test``` doesn't work with Symfony 3.3.0-RC1, following error is displayed: ``` [Symfony\Component\Console\Exception\CommandNotFoundException] There are no commands defined in the "server" namespace. ``` The reason is a new version of AppKernel.php in Symfony Standard Edition - WebServerBundle is included only in 'dev' environment.