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