Fatal error: During class fetch: Uncaught ReflectionException: Class "Symfony\Component\Form\AbstractType" not found while loading "Symfony\Bridge\Doctrine\Form\Type\EntityType". in /var/www/html/vendor/symfony/config/Resource/ClassExistenceResource.php:181 Stack trace: #0 [internal function]: Symfony\Component\Config\Resource\ClassExistenceResource::throwOnRequiredClass('Symfony\\Compone...') #1 /var/www/html/vendor/symfony/doctrine-bridge/Form/Type/DoctrineType.php(30): spl_autoload_call('Symfony\\Compone...') #2 /var/www/html/vendor/composer/ClassLoader.php(576): include('/var/www/html/v...') #3 /var/www/html/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}('/var/www/html/v...') #4 [internal function]: Composer\Autoload\ClassLoader->loadClass('Symfony\\Bridge\\...') #5 /var/www/html/vendor/symfony/doctrine-bridge/Form/Type/EntityType.php(22): spl_autoload_call('Symfony\\Bridge\\...') #6 /var/www/html/vendor/composer/ClassLoader.php(576): include('/var/www/html/v...') #7 /var/www/html/vendor/composer/Cl in /var/www/html/vendor/symfony/doctrine-bridge/Form/Type/DoctrineType.php on line 30