Fatal error: Uncaught Error: Class 'PHP_CodeSniffer\Tests\Core\AbstractMethodUnitTest' not found in /home/discovergreece/public_html/vendor/squizlabs/php_codesniffer/tests/Core/File/FindExtendedClassNameTest.php:19 Stack trace: #0 {main} thrown in /home/discovergreece/public_html/vendor/squizlabs/php_codesniffer/tests/Core/File/FindExtendedClassNameTest.php on line 19