Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\xampp\htdocs\enercard\vendor\symfony\console\Tests\Style\SymfonyStyleTest.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\enercard\vendor\symfony\console\Tests\Style\SymfonyStyleTest.php on line 21