Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\Landaweb\webs\serverarcos\vendor\phar-io\manifest\tests\xml\ExtElementCollectionTest.php:7 Stack trace: #0 {main} thrown in C:\Landaweb\webs\serverarcos\vendor\phar-io\manifest\tests\xml\ExtElementCollectionTest.php on line 7