Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in D:\xampp\htdocs\SSWPOS\vendor\endroid\qr-code\tests\BuilderTest.php:19 Stack trace: #0 {main} thrown in D:\xampp\htdocs\SSWPOS\vendor\endroid\qr-code\tests\BuilderTest.php on line 19