Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\slip\Warranty-UploadFile\vendor\symfony\translation\Test\ProviderFactoryTestCase.php:32 Stack trace: #0 {main} thrown in C:\xampp\htdocs\slip\Warranty-UploadFile\vendor\symfony\translation\Test\ProviderFactoryTestCase.php on line 32