Fatal error: Uncaught Error: Class "Psr\Log\AbstractLogger" not found in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\psr\log\src\NullLogger.php:13 Stack trace: #0 {main} thrown in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\psr\log\src\NullLogger.php on line 13