Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in D:\svn\bitfx\vendor\phar-io\manifest\tests\xml\ContainsElementTest.php:8 Stack trace: #0 {main} thrown in D:\svn\bitfx\vendor\phar-io\manifest\tests\xml\ContainsElementTest.php on line 8