Fatal error: Uncaught Error: Class "Symfony\Component\Yaml\Command\LintCommand" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\framework-bundle\Command\YamlLintCommand.php:24 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\framework-bundle\Command\YamlLintCommand.php on line 24