Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\Response" not found in C:\mywamp\sites\allsite\calcomposer\vendor\laravel\framework\src\Illuminate\Http\Response.php:11 Stack trace: #0 {main} thrown in C:\mywamp\sites\allsite\calcomposer\vendor\laravel\framework\src\Illuminate\Http\Response.php on line 11