[closed] Troubleshooting WordPress 3.4 - Master List (5 posts)

  1. June 27th - WordPress 3.4.1 was released. Please upgrade to that first!

    Horray! Green is here! But OMGWTFBBQ!? WordPress 3.4 broke everything?

    Don't Panic!

    This thread contains the known issues with plugins and themes found in 3.4. Please read this WHOLE topic and come back and check it later, as it will be updated.

    Remember to be calm, be patient and be respectful. Volunteers are out here to TRY and help you, but we need your help too. ALL forum rules still apply. You are just as important as everyone else.

    If your post doesn't show up right away, please be patient. With the higher than normal post volume, more people get erroneously flagged as spam. We're working hard to keep the queue clear, but making multiple posts slows us down, as we have to go back and check if you already posted. Post one. If it shows up as 'Anonymous', we'll fix it for you. Just wait.

    • Don't use excessive caps (in titles or body). Punctuate your sentence properly and humanely.
    • Do use descriptive subject lines ("All permalinks broken since 3.3" instead of "Augh! Help ASAP! This version is terrible!")
    • Don't bump your posts (they will be deleted on sight)
    • Do make your own topic unless your problem is 100% exactly the same as someone elses (it will be easier for us to help YOU that way)
    • Don't post in topics marked "Resolved" (we don't look at them).

    If you're upgrading from an older version of WordPress, you may want to read Troubleshooting WordPress 3.1 - Master List and Troubleshooting WordPress 3.2 - Master List. There are known issues with older themes and plugins, and they may not have been corrected.

    Also keep in mind that not liking the direction of WordPress's Admin Design does not a bug make. If you don't like a feature, please don't make a series of posts complaining about it. Look and see if someone already did, and post there, or consider joining the process earlier on (like in Beta or even test via SVN). What you're seeing today is the result of months of work and testing, and unless something is outright broken, it's highly unlikely to be changed.

    Again, BEFORE you post:

    Make sure you've read the entire Master List post and the New Features in 3.3 Post.

    Go to your own install's about page - http://domain.com/wp-admin/about.php - to see what's new.

    And then make sure you've tried...

    - flushing any caching plugins you might be running, as well as server and/or browser caches.

    - deactivating all plugins (yes, all) to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s). If you can't get into your admin dashboard, try resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems. Also remember to deactivate any plugins in the mu-plugins folder. The easiest way is to rename that folder to mu-plugins-old

    - switching to the Twenty Eleven theme to rule out any theme-specific problems. If you can't log in to change themes, you can remove the theme folders via FTP so the only one is twentyeleven. That will force your site to use it.

    - manually upgrading. When all else fails, download a fresh copy of the latest.zip file of 3.4 (top right on this page) to your computer, and use that to copy up. You may need to delete the wp-admin and wp-includes folders on your server. Read the Manual Update directions first!


    In all cases, make sure you're using the latest version of the plugin. Many plugins have updated and will now work with 3.4, but upgrade the plugins first before reporting an issue. For people who reported a plugin to me before, I tested them all out on a clean install of WP with only that plugin installed. If it worked, I removed it from this list. Plugin conflicts aren't the same as plugins not working on 3.4.


    In all cases, make sure you're using the latest version of the theme. For example, TwentyTen and TwentyEleven got an upgrade. Make sure you upgrade them first before coming for help.

    Problem: You get the following error -- Fatal error: Class 'WP_Theme' not found in
    Solution: Reinstall WP. The class-wp-theme.php file is included by default. This could only really happen if they get an updated wp-includes/theme.php file but not an updated wp-settings.php file. (Do the manual upgrade if you can't get into wp-admin)

    Known Themes with Issues:

    • Genesis (minor); Some warnings being displayed in the backend but no impact on functionality. There's a one-line function that needs to be put in your child themes. The issue only only show up on the theme editor page in single WordPress.
    • Elegant Themes (major): Any theme that uses ET's custom media uploader will have a borked upload modal window (theirs - not WP's). They're aware and are looking into it. Please post in ET's forums for more support.

    Please remember, themes not hosted on WordPress.org's repository are generally not supported here.

  4. CORE

    Try as we might, things get missed.

    • Page templates: <?php /* Template Name: ... on one line will not work in 3.4. For now, just force a line. Trac ticket

    So your theme/plugin is breaking?

    For themes, we recommend perusing http://make.wordpress.org/themes for any WordPress 3.4-related Theme issues. The biggest one is the handling of custom backgrounds and custom headers. There's not a whole lot else.

    Helpful links:

    By the way, if you get a lot of weird warnings and you're not a developer, go into your wp-config.php file and make sure that you've got define('WP_DEBUG', false); set :) You don't need it if you're not debugging.

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