Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/eberhardschwarze/public_html/vendor/ocramius/package-versions/test/PackageVersionsTest/FallbackVersionsTest.php:22 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/ocramius/package-versions/test/PackageVersionsTest/FallbackVersionsTest.php on line 22