Support » Installing WordPress » Could not copy file: /public_html/blog/wp-content/upgrade/wordpress-2.8/wordpres

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  • I’m getting the same message although I was upgrading from 2.7.1 a first time. A few plug-ins broke, but I was able to fix those with re-installs or deactivation/reactivation.

    I got the same message about not being able to copy the wp-comments-post.php file, and here’s how I fixed it:

    1. I logged into my server via ftp
    2. Located the upgrade files in wp-content/upgrade
    3. Tried to delete the core directory and all its contents (these, I believe are the upgrade files)
    4. I was denied permission to delete these files (on my own server no less), so I used Terminal (on a mac) to ssh into the server and delete the ‘core’ directory.
    5. Re-ran the upgrade from within WP, and all was well.

    Hope this helps.

    The Secret Cash Builder


    Well I had no problem deleting the file, but when I re-ran the upgrade I got the same error. 🙁

    I’m also having same situation, I successfully upgraded to 2.8 but couldn’t upgrade any plugins…the message : Could not copy file /public_html/wp-content/upgrade/my-category-order.2.8/my-category-order/

    fwiw, i reset my upgrade folder file permissions to 777 and i was able to upgrade. got a weird error message right before that popped up and was gone so I was not able to get a screenshot or read it, but i am upgraded successfully now. i think it said something about MSQL. no problems so far, but we’ll see how it goes.

    I downloaded a copy of 2.8 to my local PC. Logged into CPanel, opened file manager and did a copy and paste/replace job of the wp-comments-post.php file. I was then able to upgrade via the WP admin panel auto-upgrade function. Guess the upgrade process checked to see if the latest update date of the wp-comments-post.php was more recent than the auto-upgrade version and, seeing that it was updated on 6-22 the auto-update function didn’t even attempt to upload the WP 2.8 version, which I believe has the wp-comments-post.php file dated in May 2009.

    Hope that all makes sense. I, too, am always groping around in the dark when it comes to mucking with code, servers, etc.

    Hi, I have the same problem and found out, that some files in the upgrade/core/wordpress path have an empty file size. If I open the file it is empty. Example: revisions-js.php in upgrade/core/wordpress/wp-admin/js/

    It seems to me that in the process of copying from the temporary folder to upgrade/core/wordpress a different process deletes the content. Maybe a virus protection or so.

    This error happens only at my hoster “hosteurope” but not on my hoster “hoststar”.

    Maybe this is a hint to further improvement.

    Hi guys 🙂
    I too ran into this problem last night.
    After doing all the necessary backups I was prepared to do a manual install but I had a quick thought.

    I first installed WordPress using Fantastico in cPanel. I went back into Fantastico, where it urged me to upgrade, I gave it a shot and it was successful!

    I understand that a lot of you would’ve installed WP manually and that this step won’t work for you but for those who did use the autoinstaller – see what happens?



    Deleting the Core folder in wp-content/upgrade/ worked for me



    I was getting the same error on every plugin upgrade.
    My upgrades folder had a file in it- that I couldn’t delete.
    I deleted the upgrades folder in wp-content/
    made a new upgrades folder-
    set it to 755
    voila- everything worked.

    Deleting the WordPress folder in wp-content/upgrade/ worked as well for me as I too was experiencing the same error.

    For some reason I’ve never been able to make this upgrade feature work either. Once, I think, it worked flawlessly for me. Every other time- I’d get a nice little error that would go something like:
    Could not copy file: /blah/wp-content/upgrade/wordpress-2.tmp/wordpress/wp-comments-post.php
    I’ve tried all the standard tricks; recreating wp-content/upgrade and setting permissions, etc. It would be nice to have this upgrader say why exactly it failed (aren’t detailed error messages actually helpful?)

    Anyhow, this trick worked for me. I ssh’d in and ran this (totally cheating, I know):

    watch -n0.1 "chmod a+rwx -R /blah/wp-content/upgrade/"

    Then I initiated the upgrade and — the upgrade actually worked. It seems like the ftp method of uploading forgets, inadvertently resets, or otherwise assumes way too much in ways of permissions.

    DISCLAIMER: don’t follow this trick unless you know what you’re doing. Seriously. This resets all permissions recursively every 0.1 seconds.

    Hi all,


    I was facing a similar problem while installing themes and was running the latest version of WordPress (Version 2.9.2).

    I tried various themes, all which couldn’t get installed or copied.

    So finally, I gave all the rights to the database user.
    Still the problem existed.

    And I was installing the themes from the Dashboard of the WordPress.

    Went to the File Manager in my hosting service provider.
    Gave all the rights to all the folders – which then appears as 777

    Now installed the same theme that gave the error and it got installed and seems all set to go.

    Best Wishes,

Viewing 13 replies - 1 through 13 (of 13 total)
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