Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DataCollector\DataCollector' not found in /var/www/html/tmp/contrib/devel/webprofiler/src/DataCollector/ConfigDataCollector.php:14 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/devel/webprofiler/src/DataCollector/ConfigDataCollector.php on line 14