Fatal error: Uncaught Error: Class "Symfony\Component\Console\Output\ConsoleOutput" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\psy\psysh\src\Output\ShellOutput.php:21 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\psy\psysh\src\Output\ShellOutput.php on line 21