Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\xampp\htdocs\com.arbokcorp.app\vendor\lcobucci\jwt\test\unit\SignatureTest.php:14 Stack trace: #0 {main} thrown in C:\xampp\htdocs\com.arbokcorp.app\vendor\lcobucci\jwt\test\unit\SignatureTest.php on line 14