wpsnoop Fatal error: Cannot redeclare register_plugin_styles()

If you are dealing with a WordPress issue where a PHP Function register_plugin_styles() 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 33 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 33 different instances of potential conflicts where different plugins or themes share the function name.

Examples of this error include:

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/unslider-image/main-function.php:28)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/easy-logo-slider/init.php:476)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/wp-course-manager/wp-course-manager.php:70)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/portfolio-5000/portfolio-5000.php:15)

This file is part of the WordPress plugin Portfolio 5000 and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/recent-posts-by-cooperative-computing/recent-posts-by-cooperative-computing.php:19)

This file is part of the WordPress plugin Recent Posts by Cooperative Computing and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/openmat/openmat.php:115)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/sepideman-persian-fonts/sepideman-persian-fonts.php:15)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/instagram-followers-shortcode/instagramFollowersShortcode.php:49)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/codenovo-portfolio/codenovo-portfolio.php:179)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/stripe-manager/simple-stripe-checkout-manager.php:29)

This file is part of the WordPress plugin WP Simple Pay Lite for Stripe Manager and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/hypercardinator/hypercardinator.php:25)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/ah-social-share/ah-social-share.php:19)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/auto-scrolling-testimonials/auto-scrolling-testimonial.php:299)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/notice-advance-nth/notice-advance.php:97)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/page-health-o-meter/health-o-meter.php:13)

This file is part of the WordPress plugin Page Health-O-Meter and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/woocommerce-tl-birimi/yenitl.php:47)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/task-ba-taskmanager/index.php:156)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/onwebchat/onwebchat.php:406)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/total-simple-contact-form/total_simple_contact_form.php:230)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/wp-pocketrss/wp-pocketrss.php:49)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/woocommerce-csv-export-for-user-roles/wooexportcsv.php:200)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/tightrope/tighrope.php:828)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/trumani-shortcodes/trumani_shortcodes.php:34)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/guitar-chords-and-tabs/guitar-chords-and-tabs.php:148)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/ipsuite-latest-topics/IPSLatest.php:58)

This file is part of the WordPress plugin IPS 4 Lastest Topics and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/instapago/Instapago.php:30)

This file is part of the WordPress plugin Instapago Payment Gateway for WooCommerce and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/everquest-next-raid-planner/eqnext-raider.php:24)

This file is part of the WordPress plugin EverQuest Next Raid Planner Plugin and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/my-mailchimp/mymailchimp.php:20)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/easydigitaldownloads-hoststreamsell-extension/includes/add-download.php:26)

This file is part of the WordPress plugin Easy Digital Downloads HSS Extension for Streaming Video and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/sms2everywhere/sms2everywhere.php:96)

This file is part of the WordPress plugin Sms2everywhere and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/wp-fb-feeds/wp-fb-feeds.php:25)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/welcome-popup/welcome_popup.php:30)

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

PHP Fatal error: Cannot redeclare register_plugin_styles() (previously declared in wp-content/plugins/inaturalist/inaturalist.php:24)

This file is part of the WordPress plugin iNaturalist v1 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.