Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\inetpub\wwwroot\mantis\vendor\nikic\fast-route\test\RouteCollectorTest.php:7 Stack trace: #0 {main} thrown in C:\inetpub\wwwroot\mantis\vendor\nikic\fast-route\test\RouteCollectorTest.php on line 7