Fatal error: Uncaught Error: Interface 'Psr\Log\LoggerInterface' not found in D:\svn\epic-site(사전예약)\default\vendor\laravel\framework\src\Illuminate\Log\LogManager.php:21 Stack trace: #0 {main} thrown in D:\svn\epic-site(사전예약)\default\vendor\laravel\framework\src\Illuminate\Log\LogManager.php on line 21