Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/edmedu/www/edmeducation.co.kr/tw-dev/vendor/aws/aws-crt-php/tests/ErrorTest.php:8 Stack trace: #0 {main} thrown in /home/edmedu/www/edmeducation.co.kr/tw-dev/vendor/aws/aws-crt-php/tests/ErrorTest.php on line 8