Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\laragon\www\siesicis\ovh-sms\vendor\symfony\debug\Tests\ErrorHandlerTest.php:25 Stack trace: #0 {main} thrown in C:\laragon\www\siesicis\ovh-sms\vendor\symfony\debug\Tests\ErrorHandlerTest.php on line 25