Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\r10csm\vendor\doctrine\inflector\tests\Doctrine\Tests\Inflector\CachedWordInflectorTest.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\r10csm\vendor\doctrine\inflector\tests\Doctrine\Tests\Inflector\CachedWordInflectorTest.php on line 12