Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\print\vendor\nikic\php-parser\test\PhpParser\Builder\TraitUseTest.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\print\vendor\nikic\php-parser\test\PhpParser\Builder\TraitUseTest.php on line 8