Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\SHC\xampp\htdocs\shc_mobile_backend\vendor\symfony\translation\Test\ProviderTestCase.php:30 Stack trace: #0 {main} thrown in C:\SHC\xampp\htdocs\shc_mobile_backend\vendor\symfony\translation\Test\ProviderTestCase.php on line 30