Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\Apache24\htdocs\cms_upgrade\vendor\symfony-cmf\routing\tests\Unit\Candidates\CandidatesTest.php:18 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\symfony-cmf\routing\tests\Unit\Candidates\CandidatesTest.php on line 18