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