Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/wwiwil/apps/iwill-laravel/vendor/symfony/translation-contracts/Test/TranslatorTest.php:31 Stack trace: #0 {main} thrown in /home/wwiwil/apps/iwill-laravel/vendor/symfony/translation-contracts/Test/TranslatorTest.php on line 31