Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/devmindz/public_html/fedex_api/php/vendor/squizlabs/php_codesniffer/tests/Core/IsCamelCapsTest.php:15 Stack trace: #0 /home/devmindz/public_html/fedex_api/php/vendor/squizlabs/php_codesniffer/tests/Core/AllTests.php(15): require_once() #1 /home/devmindz/public_html/fedex_api/php/vendor/squizlabs/php_codesniffer/tests/AllTests.php(15): include_once('/home/devmindz/...') #2 {main} thrown in /home/devmindz/public_html/fedex_api/php/vendor/squizlabs/php_codesniffer/tests/Core/IsCamelCapsTest.php on line 15