Fatal error: Uncaught Error: Interface "Psy\Formatter\ReflectorFormatter" not found in D:\Apache24\www\ys_gs1\back-end\vendor\psy\psysh\src\Formatter\SignatureFormatter.php:23 Stack trace: #0 {main} thrown in D:\Apache24\www\ys_gs1\back-end\vendor\psy\psysh\src\Formatter\SignatureFormatter.php on line 23