Fatal error: Uncaught Error: Class 'React\Tests\Dns\TestCase' not found in /home/user1111058/www/dev.companysam.by/vendor/react/dns/tests/Resolver/FactoryTest.php:9 Stack trace: #0 {main} thrown in /home/user1111058/www/dev.companysam.by/vendor/react/dns/tests/Resolver/FactoryTest.php on line 9