The installer will check for correct permissions during the installation. If you need to fix the file permissions, this guide will help.

Pagekit needs to be able to write to the following files and directories and each of their subdirectories.

File/Folder Description
/app To access the system files.
/packages To install and update extensions.
/storage Stores binary files you upload to your site.
/tmp Stores temporary, cache and log files.
config.php Installer will write to this file.

The actual permission settings depend on the user that PHP and the webserver are running on and the owner of the folders. If your webserver has problems with the CHMOD 755, you can also try 775.

You should always avoid 777 permissions on your production webserver, since this will allow anyone, who has access to the machine, to edit the files.