Fatal error: Uncaught exception 'RuntimeException' with message 'This component has dependencies that are unmet. Either build a vendor/autoloader.php that will load this components dependencies ... OR Install composer (http://getcomposer.org), and run the following command in the root of this project: php /path/to/composer.phar install After that, you should be able to run tests.' in C:\xampp\htdocs\inlislite3-old\vendorxa\zendframework\zendpdf\tests\_autoload.php:6 Stack trace: #0 {main} thrown in C:\xampp\htdocs\inlislite3-old\vendorxa\zendframework\zendpdf\tests\_autoload.php on line 6