Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\laragon\www\siesicis\ovh-sms\vendor\symfony\filesystem\Tests\LockHandlerTest.php:16 Stack trace: #0 {main} thrown in C:\laragon\www\siesicis\ovh-sms\vendor\symfony\filesystem\Tests\LockHandlerTest.php on line 16