Fatal error: Uncaught Error: Interface 'Symfony\Component\DependencyInjection\Dumper\DumperInterface' not found in C:\SistemasPHP\observatorio4\vendor\symfony\dependency-injection\Dumper\Dumper.php:21 Stack trace: #0 {main} thrown in C:\SistemasPHP\observatorio4\vendor\symfony\dependency-injection\Dumper\Dumper.php on line 21