wpsnoop Fatal error: Cannot redeclare d()

If you are dealing with a WordPress issue where a PHP Function d() 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 19 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 19 different instances of potential conflicts where different plugins or themes share the function name.

Examples of this error include:

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/debug-toolkit/vendor/kint-php/kint/init_helpers.php:34)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/showspace-product-widgets-plugin/showspace.php:317)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/pco-kint/vendor/raveren/kint/Kint.class.php:736)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/ns-cloner-site-copier/vendor/kint-php/kint/init_helpers.php:34)

This file is part of the WordPress plugin NS Cloner - Site Copier and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/remove-fields/vendor/raveren/kint/Kint.class.php:736)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/somatic-framework/dev/kint/Kint.class.php:815)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/catchers-helpdesk/src/helpers.php:22)

This file is part of the WordPress plugin Catchers Helpdesk and Ticket system for Support and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/q-support/library/kint/Kint.class.php:541)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/kint-debugger/kint-debugger.php:99)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/kint-php-debugger/src/kint-php/kint/Kint.class.php:743)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/post-pdf-export/dompdf/include/functions.inc.php:159)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/tagembed-widget/helper/helper.php:61)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/taggbox-widget/helper/helper.php:47)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/peenapo-layouts/peenapo-layouts.php:20)

This file is part of the WordPress plugin Peenapo Layouts - Page Builder, drag and drop website builder and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/homepage-planner/vendor/larapack/dd/src/helper.php:13)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/fifa-world-cup-south-africa-scoreboard/fifa-world-cup-south-africa-scoreboard.php:395)

This file is part of the WordPress plugin FIFA World Cup South Africa scoreboard. and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/wc-essential-addons/vendor/raveren/kint/init_helpers.php:34)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/ts-tree/class/tools.php:7)

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

PHP Fatal error: Cannot redeclare d() (previously declared in wp-content/plugins/two-tap/includes/functions/two-tap-core-functions.php:275)

This file is part of the WordPress plugin Two Tap Product Catalog 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.