When I tried to upgrade to the latest version of Wordpress, I got this error: Downloading update from http://wordpress.org/wordpress-2.8.4.zip. Unpacking the update. Could not copy file: /public_html/domainname.com/wp-content/upgrade/wordpress-2.8.4/wordpress/wp-comments-post.php Installation Failed What could be the cause of file being not copied which lead to a failed installation? What is the solution for this?
Update: I was able to fix this problem by chmoding wp-comments-post.php to 777. Just in case you encounter the same issue, chmod might be the solution.
i have this problem all the time when doing updates.. I fix it by renaming the WP-Content\upgrade folder to something different like wp-content\upgradeXYZ (or just deleting it).. The installer will re-created the upgrade folder with the correct permissions, and then it works fine.
Hi Tearabite, The new problem is that all my plugins can't be upgraded. All upgrades failed. What shall I do? Rename that folder?
For no reason this same failed auto-upgrade problem just appeared for me. Every plugin I tried to auto-update would fail. I don't know what I could have done to start the chain reaction, but finally deleted the wp-content/upgrade folder. It had a lot of stuff in there. Anyway, WP re-created this folder during the next plugin auto-update and everything has worked fine since.