Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in E:\xampp\htdocs\stms\vendor\bacon\bacon-qr-code\tests\BaconQrCode\Common\ErrorCorrectionLevelTest.php:14 Stack trace: #0 {main} thrown in E:\xampp\htdocs\stms\vendor\bacon\bacon-qr-code\tests\BaconQrCode\Common\ErrorCorrectionLevelTest.php on line 14