Fatal error: Uncaught Error: Class 'Symfony\Component\Config\ConfigCache' not found in /var/www/webapp/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php:534 Stack trace: #0 /var/www/webapp/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php(117): Symfony\Component\HttpKernel\Kernel->initializeContainer() #1 /var/www/webapp/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/HttpCache/HttpCache.php(54): Symfony\Component\HttpKernel\Kernel->boot() #2 /var/www/webapp/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(414): Symfony\Bundle\FrameworkBundle\HttpCache\HttpCache->forward(Object(Symfony\Component\HttpFoundation\Request), true) #3 /var/www/webapp/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(311): Symfony\Component\HttpKernel\HttpCache\HttpCache->fetch(Object(Symfony\Component\HttpFoundation\Request), true) #4 /var/www/webapp/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(186): Symfon in /var/www/webapp/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php on line 534