Fatal error: Uncaught ReflectionException: Class "PHPUnit\Framework\Constraint\Constraint" does not exist in /home/ldt/public_html/canvas/udoit/vendor/symfony/phpunit-bridge/ConstraintTrait.php:16 Stack trace: #0 /home/ldt/public_html/canvas/udoit/vendor/symfony/phpunit-bridge/ConstraintTrait.php(16): ReflectionClass->__construct('PHPUnit\\Framewo...') #1 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/symfony/phpunit-bridge/ConstraintTrait.php on line 16