Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\xampp\htdocs\enercard\vendor\symfony\console\Tests\Input\InputDefinitionTest.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\enercard\vendor\symfony\console\Tests\Input\InputDefinitionTest.php on line 18