wpsnoop Fatal error: Cannot redeclare admin_register_head()

If you are dealing with a WordPress issue where a PHP Function admin_register_head() was already declared it is most likely due to a plugin/theme conflict.

wpsnoop scanned and analyzed over 100,000 WordPress plugins and themes to find and locate potential conflicts including functions that share the same name.

This page has information on the 38 places where that function is declared and used in WordPress plugins and themes.

Note: Our database currently only taps into the free themes and plugins available in the publicly available WordPress plugins and themes, if your site uses paid plugins, themes or custom code there may be additional conflicts.

Our database has uncovered 38 different instances of potential conflicts where different plugins or themes share the function name.

Examples of this error include:

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/better-stop-adblock/better-stop-adblock.php:14)

This file is part of the WordPress plugin Better Stop AdBlock and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/comparepress/admin/utility/enqueue_scripts.php:6)

This file is part of the WordPress plugin ComparePress and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/newsflow/newsflow.php:89)

This file is part of the WordPress plugin Newsflow and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/fxwidget/fxwidget.php:312)

This file is part of the WordPress plugin FxWidget and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/easily-navigate-pages-on-your-dashboard/easily-navigate-pages-on-dashboard.php:156)

This file is part of the WordPress plugin Easily navigate pages on dashboard and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/wp-hide-my-site/index.php:13)

This file is part of the WordPress plugin Hide my site and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/wp-cufon/wp-cufon.php:140)

This file is part of the WordPress plugin WP-Cufón and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/hyper-domains-search-reseller/hds.php:45)

This file is part of the WordPress plugin Hyper Domains Search & Reseller and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/stripe-political-donations/admin.php:19)

This file is part of the WordPress plugin Stripe Political Donations & Payments and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/hypernews/hypernews.php:52)

This file is part of the WordPress plugin Hypernews and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/wp-pizzeria/wp_pizzeria.php:105)

This file is part of the WordPress plugin WP Pizzeria and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/instalocker/instafollow-content-locker.php:18)

This file is part of the WordPress plugin InstaLocker Shortcode and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/content-management-system-dashboard/cms-dashboard.php:73)

This file is part of the WordPress plugin CMS Dashboard and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/wp-pluspoints/wp-pluspoints.php:97)

This file is part of the WordPress plugin Your PointsPlus and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/bafta-guru-widget/bafta-guru.php:68)

This file is part of the WordPress plugin BAFTA Guru widget and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/list-category-posts-with-pagination/list-category-posts-with-pagination.php:11)

This file is part of the WordPress plugin List Category Posts with Pagination and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/responsive-news-scroller/admin/class-wpr-scroller-admin.php:36)

This file is part of the WordPress plugin wordpress responsive scroller and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/sliderly/sliderly.php:26)

This file is part of the WordPress plugin Sliderly and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/wp-youtube-custom/wpvote-youtube.php:39)

This file is part of the WordPress plugin Wp Youtube Custom and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/social-media-share-buttons/mozedia-sharing.php:366)

This file is part of the WordPress plugin Social Media Share Buttons and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/buy-now-button-by-ntekg/easyBuyNow.php:555)

This file is part of the WordPress plugin Easy Buy Now Button and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/radslide/display.php:46)

This file is part of the WordPress plugin radSLIDE and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/fb-thumbnail-config/FB_Thumbnail_Config.php:114)

This file is part of the WordPress plugin FB Thumbnail Config and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/clip-art-illustration-search-and-insert/clip-art-illustration-search-and-insert.php:57)

This file is part of the WordPress plugin Free Clip Art Illustration Image Search / Insert and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/yawpp/yawpp.php:105)

This file is part of the WordPress plugin Yawpp (Yet Another Wordpress Plugin Petition) and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/asset-store-publisher-contact-form/settings.php:11)

This file is part of the WordPress plugin Asset Store Customer Support Form and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/wp-strings/WP-Strings.php:65)

This file is part of the WordPress plugin WP-Strings and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/speedcache/wp-cdn-linker.php:120)

This file is part of the WordPress plugin CDN Speed Cache and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/ultimate-under-construction/includes/uucadmin.php:169)

This file is part of the WordPress plugin Ultimate Under Construction page and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/easy-contact-forms-exporter/easy-contact-forms-export.php:81)

This file is part of the WordPress plugin Easy Contact Forms Export and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/foliodock-api/singletons/api.php:15)

This file is part of the WordPress plugin Foliodock API and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/simple-tinymce-button-upgrade/main.php:58)

This file is part of the WordPress plugin Simple TinyMCE and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/wp-cookie-consent/cookie_consent.php:106)

This file is part of the WordPress plugin WP Cookie Consent and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/zuppler-online-ordering/zuppler-online-ordering.php:201)

This file is part of the WordPress plugin Zuppler Online Ordering and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/pensee-du-jour/pensee-du-jour.php:193)

This file is part of the WordPress plugin Pensée du jour and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/advanced-dates/advanced-dates.php:13)

This file is part of the WordPress plugin Advanced Dates and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/consent-manager/consentmanager.php:398)

This file is part of the WordPress plugin consentmanager and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_register_head() (previously declared in wp-content/plugins/appstore/AppStore.php:683)

This file is part of the WordPress plugin AppStore Links and could be interacting with another theme or plugin and causing a fatal error.

The error occurs because two (or more) plugins that you are using are both trying to declare a function with the same name.