Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\Apache24\htdocs\cms_upgrade\vendor\consolidation\site-alias\tests\SiteAliasFileDiscoveryTest.php:6 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\consolidation\site-alias\tests\SiteAliasFileDiscoveryTest.php on line 6