Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\rabani-mobile-api-staging\vendor\rap2hpoutre\fast-excel\tests\TestCase.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\rabani-mobile-api-staging\vendor\rap2hpoutre\fast-excel\tests\TestCase.php on line 10