Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in /home/ldt/public_html/canvas/udoit/vendor/symfony/security-bundle/DataCollector/SecurityDataCollector.php:37 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/symfony/security-bundle/DataCollector/SecurityDataCollector.php on line 37