Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/net1/tares.net1.club/vendor/symfony/flex/tests/PackageResolverTest.php:17 Stack trace: #0 {main} thrown in /home/net1/tares.net1.club/vendor/symfony/flex/tests/PackageResolverTest.php on line 17