Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/yukonw3creatives/public_html/vendor/squizlabs/php_codesniffer/tests/Core/AbstractMethodUnitTest.php:19 Stack trace: #0 {main} thrown in /home/yukonw3creatives/public_html/vendor/squizlabs/php_codesniffer/tests/Core/AbstractMethodUnitTest.php on line 19