Fatal error: Uncaught Error: Class "Composer\Installer\LibraryInstaller" not found in /media/jean/learning/huagai/drupal/vendor/composer/installers/src/Composer/Installers/Installer.php:15 Stack trace: #0 {main} thrown in /media/jean/learning/huagai/drupal/vendor/composer/installers/src/Composer/Installers/Installer.php on line 15