Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/changeco/public_html/vendor/symfony/translation/Tests/Loader/MoFileLoaderTest.php:18 Stack trace: #0 {main} thrown in /home/changeco/public_html/vendor/symfony/translation/Tests/Loader/MoFileLoaderTest.php on line 18