Fatal error: Uncaught Error: Interface 'Drupal\Composer\Plugin\Scaffold\PostPackageEventListenerInterface' not found in C:\SistemasPHP\observatorio4\vendor\drupal\core-composer-scaffold\AllowedPackages.php:19 Stack trace: #0 {main} thrown in C:\SistemasPHP\observatorio4\vendor\drupal\core-composer-scaffold\AllowedPackages.php on line 19