Fatal error: Uncaught Error: Interface 'Symfony\Component\Config\FileLocatorInterface' not found in /var/www/alldocs/home/sdoehner/webtest/simplesamlphp_idp/vendor/symfony/framework-bundle/Templating/Loader/TemplateLocator.php:26 Stack trace: #0 {main} thrown in /var/www/alldocs/home/sdoehner/webtest/simplesamlphp_idp/vendor/symfony/framework-bundle/Templating/Loader/TemplateLocator.php on line 26