Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\xampp\htdocs\enercard\vendor\symfony\var-dumper\Tests\Caster\PdoCasterTest.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\enercard\vendor\symfony\var-dumper\Tests\Caster\PdoCasterTest.php on line 20