Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/steevedfem/ekolaweb/vendor/composer/installers/tests/Composer/Installers/Test/VgmcpInstallerTest.php:9 Stack trace: #0 {main} thrown in /home/steevedfem/ekolaweb/vendor/composer/installers/tests/Composer/Installers/Test/VgmcpInstallerTest.php on line 9