Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\Apache24\htdocs\Quantum74_old\vendor\squizlabs\php_codesniffer\tests\Core\Ruleset\ProcessRulesetTest.php:21 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\Quantum74_old\vendor\squizlabs\php_codesniffer\tests\Core\Ruleset\ProcessRulesetTest.php on line 21