wpsnoop Fatal error: Cannot redeclare admin_css()

If you are dealing with a WordPress issue where a PHP Function admin_css() 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 11 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 11 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_css() (previously declared in wp-content/plugins/mblog/mblog.php:56)

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

PHP Fatal error: Cannot redeclare admin_css() (previously declared in wp-content/plugins/user-restrictor/restrict.php:86)

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

PHP Fatal error: Cannot redeclare admin_css() (previously declared in wp-content/plugins/gliffy-plugin-for-wordpress/gliffy-plugin-for-wordpress.php:558)

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

PHP Fatal error: Cannot redeclare admin_css() (previously declared in wp-content/plugins/user-tracker/admin_helper.php:13)

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

PHP Fatal error: Cannot redeclare admin_css() (previously declared in wp-content/plugins/altima-lookbook-free-for-woocommerce/lookbook.php:31)

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

PHP Fatal error: Cannot redeclare admin_css() (previously declared in wp-content/plugins/ascending-posts/fly_plugins_tools.php:11)

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

PHP Fatal error: Cannot redeclare admin_css() (previously declared in wp-content/plugins/zawgyi-one-to-ayar-unicode/a2z.php:428)

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

PHP Fatal error: Cannot redeclare admin_css() (previously declared in wp-content/plugins/easy-toolbox/index.php:77)

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

PHP Fatal error: Cannot redeclare admin_css() (previously declared in wp-content/plugins/wp-easy-poll/poll_admin.php:108)

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

PHP Fatal error: Cannot redeclare admin_css() (previously declared in wp-content/plugins/se-html5-album-audio-player/setup.php:113)

This file is part of the WordPress plugin SE HTML5 Album Audio Player and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare admin_css() (previously declared in wp-content/plugins/comment-juice/lib/admin.php:11)

This file is part of the WordPress plugin Comment Juice 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.