Fatal error: Uncaught Error: Class 'Composer\Command\BaseCommand' not found in C:\xampp\htdocs\fiveplus\vendor\symfony\thanks\src\Command\ThanksCommand.php:23 Stack trace: #0 {main} thrown in C:\xampp\htdocs\fiveplus\vendor\symfony\thanks\src\Command\ThanksCommand.php on line 23