Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/wwvicp/public_html/API4/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php:15 Stack trace: #0 {main} thrown in /home/wwvicp/public_html/API4/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php on line 15