Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /users/danielstruebig/www/firma/vendor/symfony/css-selector/Tests/Parser/Shortcut/EmptyStringParserTest.php:21 Stack trace: #0 {main} thrown in /users/danielstruebig/www/firma/vendor/symfony/css-selector/Tests/Parser/Shortcut/EmptyStringParserTest.php on line 21