2.8 Problems and Solutions (FAQ)

  • Insure backups are completed before doing the upgrade
    1. See WordPress Backups

    Can’t login to deactivate all plugins
    1. Read How to deactivate all plugins when not able to access the administrative menus?

    Try these things to resolve problems with Visual Editor and editor tool bar
    1. Delete or refresh the browser cache

    2. If using Gears, disable it and re-enable it again

    3. Delete wp-admin and wp-includes directories and upload fresh copies from a new(important) install package or reinstall automatically

    4. Visit https://yoursite.com/wp-includes/js/tinymce/wp-tinymce.php and look for any PHP errors or warnings at the top. If there are any try contacting your hosting provider to resolve them or try the next step. Of course replace yoursite.com with your domain

    5. A number of plugins have been reported to present problems so deactivate all plugins and reactivate one-by-one to find culprit. Any plugin that uses its own javascripts might be a possible candidate.

    6. Add define( ‘CONCATENATE_SCRIPTS’, false ); near the top of wp-config.php. That would make WordPress admin run slower, so can try removing it in a few days and testing again (this would eliminate any stale network cache)

    7. Some people also reported success redoing the upgrade via Tools->Upgrade->Re-install automatically, then clearing the browser cache.

    8. Try another browser

    9. Confirm that Your Profile, “Disable the visual editor when writing”, is NOT checked.

    Try these things to resolve problems with Widgets such as not able to drag and drop
    1. A number of plugins have been reported to present problems so deactivate all plugins and reactivate one-by-one to find culprit

    2. In Appearance->Widgets under Screen options, try the Enable Accessibility Mode

    3. Delete or refresh the browser cache

    Fatal error: Allowed memory size of xxxxxxxx bytes exhausted
    If deactivating plugins doesn’t work try one of these methods for increasing the amount of memory a PHP script may consume

    1. If you have access to your PHP.ini file, change the line in PHP.ini
    If your line shows 32M try 64M:
    memory_limit = 64M ; Maximum amount of memory a script may consume (64MB)

    2. If you don’t have access to PHP.ini try adding this to an .htaccess file:
    php_value memory_limit 64M

    3. Try adding this line to your wp-config.php file:
    Increasing memory allocated to PHP
    define('WP_MEMORY_LIMIT', '64M');

    4. Talk to your host.

    Upgraded, can’t login and getting error message
    In a few cases, the error message reports what plugin file is causing the problem so rename or delete the plugin folder, then try login again.

    A post is repeatedly displayed on the blog’s main page
    Likely a problem caused by a plugin so deactivate all plugins and reactivate one-by-one to determine the culprit.

    Getting Warning: gzinflate() [function.gzinflate]: data error when doing the upgrade
    1. Try redoing the upgrade via Tools->Upgrade->Re-install automatically
    2. If that fails, disable all plugins and perform a manual upgrade (see Upgrading WordPress.

    Upgrade causing error 500s
    1. Deactivate all plugins and redo upgrade.
    2. If necessary, perform a manual upgrade (see Upgrading WordPress.

    Blank admin pages after login
    1. Deactivate all plugins. See How to deactivate all plugins when not able to access the administrative menus?
    2. If necessary, rename theme folder in wp-content/themes to cause WordPress Default theme to be place into service

    Blank site after upgrade
    1. Deactivate all plugins. See How to deactivate all plugins when not able to access the administrative menus?
    2. If necessary, rename your theme folder in wp-content/themes to cause WordPress Default theme to be place into service, then see if there’s an upgrade for your theme

    Getting Fatal error: Cannot use object of type WP_Error as array
    1. Problem has been reported with the Options and Structure theme so look for upgrades
    2. Change to the WordPress Default theme if necessary

    Tags are not saved
    1. If you using hyperdb, make sure to update it.

Viewing 15 replies - 61 through 75 (of 111 total)

  • I can get drag n drop to work, but only if I change the screen options setting EVERY time I want to use it.

    I need to click “Disable accessibility mode” for drag n drop to work. If I click “Enable accessibility mode”, I can no longer drag n drop.

    Question #1: Is this backwards? It seems I would want to “enable” to use it.

    Question #2: Is there a way to save this setting so I don’t need to manually set it every time?

    @ jockoe

    “Enable Accessibility Mode” is supposed to disable drag and drop. Why you have to disable it every time is something I can’t help you with.

    Hi, I have a big problem since 2.8 update:
    When I add a new post this doesn’t shows on the home page, just shows the previous post (while use 2.71), now you can access to post pages, but not trough my home blog.

    You can view the last two posts clicking on post 1 and Post 2, but if you check the home page it doesn’t shows.

    Any idea? thanks

    its my categories that are going away automaticaly, I retype them to what bands go where, and they go thru, then all of a sudden they go away again!

    Well I think all you can do is try the instructions on page 1 of this thread, or try downgrading, which is something I haven’t tried.

    I’ve tried as many of these things as I am (technically) able to… The problem for me is that I CAN add pages or posts, but I CAN’T add any content to them via the editor… any suggestions welcome.

    I’m getting this same problem which no one answered for djd above. I have no plugins activated either. This is not an upgrade issue as I installed 2.8 for my first wp install at my new site. I blogged at wp.com for years before and have pretty much completed my import from my wp.com blog.

    Any suggestions when there is no box to type in at all for adding posts? I can’t see a list of my posts either under Posts > edit.

    Thank you, finally my drag and drop widget works now….

    So I tried this: “3. Delete wp-admin and wp-includes directories and upload fresh copies from a new(important) install package or reinstall automatically” that didn’t help. I have no plugins activated. I still have the following issues:

    1) No posts display under Posts > Edit. I get post counts of how many published, draft, etc., but no post titles that I can edit.

    2) Trying to Add a new post gives me no edit box HTML or WYSIWYG, nothing.

    3) No categories show up under Posts > Categories. I get category counts but no titles that I can click on to edit.

    I do see Post tags, and I also can see and edit pages just fine. I’ve tried IE and Firefox to no avail. I recently installed 2.8 on my site. I never had wp.org before so this isn’t an upgrade to 2.7.

    I’ve tried automatically reinstalling but that never completes. I then manually deleted wp-includes and wp-admin and from a fresh wp download I copied all the files from those folders back in to my site. Same problems as before. I am not using any plugins.

    What else can I do? I’m a newbie to using wp.org, but have been using wp.com for years.

    Okay I figured out my issue the one similar to djd’s issue back on page 2. I have 1&1 as my host, and there was a fix mentioned at this link: https://codex.www.ads-software.com/Core_Update_Host_Compatibility which solved my problems. This particular issue is explained in more detail here. If you don’t have 1&1 still see if there is some other issue with your host and its compatibility with the new WP.

    If all that fails try this link https://tinyurl.com/ntml96
    Worked fine for me.
    I’m with 1and1, they said it’s a problem on my end. After couple of hours, i deleted the wp-folder and wp-includes folder and re-uploaded them back. Worked fine ??

    follow this link for step by step details https://tinyurl.com/ntml96

    1and1 gives you a modified version of WordPress, which in my opinion was screwed up before the release of 2.8. A friend asked me to help with his site on 1and1 months ago, and it was so different from a normal WordPress installation that I advised him to switch hosts, which he did, and now his site is fine.

    The people at 1and1 should listen to the old adage “If something isn’t broken, don’t try to fix it.”

    When I try updating automatically I am getting errors…

    Warning: Cannot modify header information – headers already sent by (output started at /home5/theoldfo/public_html/bequiablog/wp-config.php:47) in /home5/theoldfo/public_html/bequiablog/wp-includes/pluggable.php on line 391

    Warning: Cannot modify header information – headers already sent by (output started at /home5/theoldfo/public_html/bequiablog/wp-config.php:47) in /home5/theoldfo/public_html/bequiablog/wp-includes/pluggable.php on line 391

    Don’t know what to do. Any advice would be much appreciated…I think it best to fix whats causing those errors before I try updating.

    I checked on the pluggable page and on the 391 line it states

    “status_header($status); // This causes problems on IIS and some FastCGI setups
    header(“Location: $location”);”

    Please help! I think I am supposed to change the location there for header or something were it says location as it says it gives problems.

    Have you tried the suggestions on the first page (deactivate all plugins, etc.)?

    My cache problem was fixed just commenting on my wp-config.php the following line:

    define( 'WP_CACHE', true );

Viewing 15 replies - 61 through 75 (of 111 total)
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