Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/phar-io/manifest/tests/xml/RequiresElementTest.php:7 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/phar-io/manifest/tests/xml/RequiresElementTest.php on line 7