Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/user1111058/www/dev.companysam.by/vendor/symfony/var-dumper/Tests/Dumper/ServerDumperTest.php:22 Stack trace: #0 {main} thrown in /home/user1111058/www/dev.companysam.by/vendor/symfony/var-dumper/Tests/Dumper/ServerDumperTest.php on line 22