Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/bucereo/my_project_name/vendor/incenteev/composer-parameter-handler/Tests/ProcessorTest.php:10 Stack trace: #0 {main} thrown in /home/bucereo/my_project_name/vendor/incenteev/composer-parameter-handler/Tests/ProcessorTest.php on line 10