Fatal error: Uncaught Error: Class 'Symfony\Contracts\Translation\Test\TranslatorTest' not found in E:\xampp\htdocs\www\key2\vendor\symfony\translation\Tests\IdentityTranslatorTest.php:17 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\key2\vendor\symfony\translation\Tests\IdentityTranslatorTest.php on line 17