Fatal error: Uncaught Error: Class "Robo\Task\Composer\Base" not found in /var/www/html/drupal/vendor/consolidation/robo/src/Task/Composer/Validate.php:15 Stack trace: #0 {main} thrown in /var/www/html/drupal/vendor/consolidation/robo/src/Task/Composer/Validate.php on line 15