Fatal error: Uncaught Error: Interface "SebastianBergmann\Exporter\ObjectExporter" not found in C:\wamp64\houda\vendor\sebastian\exporter\src\ObjectExporterChain.php:14 Stack trace: #0 {main} thrown in C:\wamp64\houda\vendor\sebastian\exporter\src\ObjectExporterChain.php on line 14