Fatal error: Uncaught RuntimeException: mkdir(): File exists Class Magento\Framework\ObjectManager\Config\Reader\Dom\Proxy generation error: The requested class did not generate properly, because the 'generated' directory permission is read-only. If --- after running the 'bin/magento setup:di:compile' CLI command when the 'generated' directory permission is set to write --- the requested class did not generate properly, then you must add the generated class object to the signature of the related construct method, only. in /home/polihome/public_html/vendor/magento/framework/Code/Generator.php:135 Stack trace: #0 /home/polihome/public_html/vendor/magento/framework/Code/Generator/Autoloader.php(35): Magento\Framework\Code\Generator->generateClass('Magento\\Framewo...') #1 [internal function]: Magento\Framework\Code\Generator\Autoloader->load('Magento\\Framewo...') #2 [internal function]: spl_autoload_call('Magento\\Framewo...') #3 /home/polihome/public_html/vendor/magento/framework/Code/Reader/ClassReader.php(19): ReflectionClass->__construct('Magento\\Framewo...') #4 /home/polihome/public_html/vendor/magento/framework/ObjectManager/Definition/Runtime.php(49): Magento\Framework\Code\Reader\ClassReader->getConstructor('Magento\\Framewo...') #5 /home/polihome/public_html/vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php(48): Magento\Framework\ObjectManager\Definition\Runtime->getParameters('Magento\\Framewo...') #6 /home/polihome/public_html/vendor/magento/framework/ObjectManager/ObjectManager.php(70): Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create('Magento\\Framewo...') #7 /home/polihome/public_html/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(160): Magento\Framework\ObjectManager\ObjectManager->get('Magento\\Framewo...') #8 /home/polihome/public_html/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(246): Magento\Framework\ObjectManager\Factory\AbstractFactory->resolveArgument(Array, 'Magento\\Framewo...', NULL, 'reader', 'Magento\\Framewo...') #9 /home in /home/polihome/public_html/vendor/magento/framework/Code/Generator.php on line 135