Unable to save Menu changes. Receive Fatal Erroro (4 posts)

  1. jimhedd
    Posted 1 year ago #

    After deleting a menu item and clicking save, I received the following error message:

    Fatal error: Call to undefined function wp_nav_menu_update_menu_items() in /hermes/waloraweb067/b2288/pow.jimhedd/htdocs/wp-admin/nav-menus.php on line 349

    My site works fine externally other than the fact I can't change my menu.

    I deactivated all my plugins and it still doesn't work. Any help is appreciated.

  2. Tara
    Posted 1 year ago #

    - To rule out any theme-specific issue, try switching to the unedited default theme for a moment using the WP dashboard. If you don't have access to your admin area, you can switch to the default theme by renaming your current theme's folder in wp-content/themes and adding "-old" to the end of the folder name using via FTP or SFTP or whatever file management application your host provides. Alternately, you can remove other themes except the default theme. That will force your site to use it.

  3. jimhedd
    Posted 1 year ago #

    Hi and thanks for your response. I switched to the Twenty Thirteen theme which was unedited and came across the same error code.

  4. Tara
    Posted 1 year ago #

    Have you tried:

    -deactivating ALL plugins temporarily to see if this resolves the problem. If this works, re-activate them individually (one-by-one) to find the problematic plugin(s). If you can't get into your admin dashboard, try deactivating via FTP or SFTP or whatever file management application your host provides. If applicible, also remember to deactivate any plugins in the mu-plugins folder. The easiest way is to rename that folder to mu-plugins-old.

    - If that fails to resolve the issue, try manually re-uploading all files and folders EXCEPT the wp-config.php file and the /wp-content/ directory from a fresh download of WordPress. Make sure that you delete the old copies of files & folder before uploading the new ones. Read the Manual Update directions first!
    - Always backup everything (including your database) before doing any actions, just in case.

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