Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/eberhardschwarze/public_html/vendor/contao-components/installer/tests/TestCase.php:20
Stack trace:
#0 {main}
thrown in /home/eberhardschwarze/public_html/vendor/contao-components/installer/tests/TestCase.php on line 20