Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /data/htmlwww/laravel-system/vendor/doctrine/inflector/tests/Doctrine/Tests/Inflector/Rules/SubstitutionsTest.php:12 Stack trace: #0 {main} thrown in /data/htmlwww/laravel-system/vendor/doctrine/inflector/tests/Doctrine/Tests/Inflector/Rules/SubstitutionsTest.php on line 12