PHP Fatal error: Uncaught Error: Call to undefined function wp_get_wp_version()

  • SRD75

    (@srd75)


    1 day, 7 hours ago

    The site is broken (blank white screen), and error_log contains:

    [05-May-2026 04:19:01 UTC] PHP Fatal error: Uncaught Error: Call to undefined function wp_get_wp_version() in /home/user/public_html/wp-content/plugins/wordpress-seo/src/conditionals/abilities-api-conditional.php:21 Stack trace: #0 /home/user/public_html/wp-content/plugins/wordpress-seo/src/loader.php(270): Yoast\WP\SEO\Conditionals\Abilities_API_Conditional->is_met() #1 /home/user/public_html/wp-content/plugins/wordpress-seo/src/loader.php(208): Yoast\WP\SEO\Loader->conditionals_are_met() #2 /home/user/public_html/wp-includes/class-wp-hook.php(324): Yoast\WP\SEO\Loader->load_integrations() #3 /home/user/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #4 /home/user/public_html/wp-includes/plugin.php(517): WP_Hook->do_action() #5 /home/user/public_html/wp-settings.php(700): do_action() #6 /home/user/public_html/wp-config.php(92): require_once(‘/home/user/…’) #7 /home/user/public_html/wp-load.php(50): require_once(‘/home/user/…’) #8 /home/user/public_html/wp-blog-header.php(13): require_once(‘/home/user/…’) #9 /home/user/public_html/index.php(17): require(‘/home/user/…’) #10 {main} thrown in /home/user/public_html/wp-content/plugins/wordpress-seo/src/conditionals/abilities-api-conditional.php on line 21

    Replacing the plugin’s files with today’s version does not resolve the issue.

    Help appreciated.

Viewing 2 replies - 1 through 2 (of 2 total)
  • Beee

    (@beee)

    1 day, 2 hours ago

    wp_get_wp_version is a default WordPress function (see wp-includes/functions.php line 8933) so if a standard WP function can’t be found… there might be something else which is wrong.
    I am using the latest version and don’t experience the issues you report, nor have I ever seen it.

    Plugin Support Maybellyne

    (@maybellyne)

    21 hours, 48 minutes ago

    Hello @srd75,

    Thanks for reaching out. We didn’t have a plugin release today so I’m unsure what you mean by today’s version.

    To resolve the issue, ensure you have Yoast SEO v27.5 and at least WordPress v6.9.

Viewing 2 replies - 1 through 2 (of 2 total)

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