Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Helper\Helper' not found in /var/www/alldocs/home/sdoehner/webtest/simplesamlphp_idp/vendor/symfony/console/Helper/ProcessHelper.php:26 Stack trace: #0 {main} thrown in /var/www/alldocs/home/sdoehner/webtest/simplesamlphp_idp/vendor/symfony/console/Helper/ProcessHelper.php on line 26