Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/littledr/music.loading-data.com/vendor/squizlabs/php_codesniffer/tests/Core/AbstractMethodUnitTest.php:17 Stack trace: #0 {main} thrown in /home/littledr/music.loading-data.com/vendor/squizlabs/php_codesniffer/tests/Core/AbstractMethodUnitTest.php on line 17