Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\laharkades\vendor\facade\ignition-contracts\Tests\SolutionTest.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\laharkades\vendor\facade\ignition-contracts\Tests\SolutionTest.php on line 8