Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\siscolasmdp\vendor\bacon\bacon-qr-code\test\Common\BitMatrixTest.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\siscolasmdp\vendor\bacon\bacon-qr-code\test\Common\BitMatrixTest.php on line 10