Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/benjamincb/demos/acdg-site/vendor/contao/manager-plugin/tests/Composer/AppAutoloadPluginTest.php:21 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/contao/manager-plugin/tests/Composer/AppAutoloadPluginTest.php on line 21