Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\Apache24\htdocs\vendor.old\phpunit\php-token-stream\tests\Token\NamespaceTest.php:13 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\vendor.old\phpunit\php-token-stream\tests\Token\NamespaceTest.php on line 13