Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in E:\xampp\htdocs\api.astka\vendor\psr\log\Psr\Log\Test\LoggerInterfaceTest.php:14 Stack trace: #0 {main} thrown in E:\xampp\htdocs\api.astka\vendor\psr\log\Psr\Log\Test\LoggerInterfaceTest.php on line 14