Fatal error: Uncaught Error: Class "Symfony\Component\Console\Tests\Descriptor\AbstractDescriptorTest" not found in D:\Application\www\Training\vendor\symfony\console\Tests\Descriptor\TextDescriptorTest.php:19 Stack trace: #0 {main} thrown in D:\Application\www\Training\vendor\symfony\console\Tests\Descriptor\TextDescriptorTest.php on line 19