Fatal error: Uncaught Error: Class "Yoast\PHPUnitPolyfills\TestCases\TestCase" not found in D:\Server\ProjectJI\vendor\aws\aws-sdk-php\tests\Script\ComposerTest.php:9 Stack trace: #0 {main} thrown in D:\Server\ProjectJI\vendor\aws\aws-sdk-php\tests\Script\ComposerTest.php on line 9