Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\facade\ignition-contracts\Tests\SolutionTest.php:8 Stack trace: #0 {main} thrown in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\facade\ignition-contracts\Tests\SolutionTest.php on line 8