Fatal error: Uncaught Error: Class 'Drupal\Composer\Plugin\Scaffold\Operations\AbstractOperation' not found in C:\SistemasPHP\observatorio4\vendor\drupal\core-composer-scaffold\Operations\AppendOp.php:14 Stack trace: #0 {main} thrown in C:\SistemasPHP\observatorio4\vendor\drupal\core-composer-scaffold\Operations\AppendOp.php on line 14