Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /home/melozbco/public_html/vendor/guzzlehttp/streams/tests/UtilsTest.php:9 Stack trace: #0 {main} thrown in /home/melozbco/public_html/vendor/guzzlehttp/streams/tests/UtilsTest.php on line 9