wpsnoop Fatal error: Cannot redeclare _is_elementor_installed()

If you are dealing with a WordPress issue where a PHP Function _is_elementor_installed() 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 29 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 29 different instances of potential conflicts where different plugins or themes share the function name.

Examples of this error include:

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/news-ticker-widget-for-elementor/elementor-news-ticker.php:92)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/devices-elementor/elementor-devices.php:206)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/social-elementor-lite/classes/class-social-elementor-loader.php:202)

This file is part of the WordPress plugin Social Addons for Elementor (Lite) and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/modal-for-elementor/modal-for-elementor.php:101)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/countdown-timer-for-elementor/countdown-timer-for-elementor.php:113)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/wp-event-manager/external/external.php:19)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/header-footer-elementor/inc/class-header-footer-elementor.php:620)

This file is part of the WordPress plugin Elementor Header & Footer Builder and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/hide-my-elementor/hide_elementor.php:121)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/tables-for-elementor/elementor-tables.php:104)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/column-stretch-elementor/column-stretch-elementor.php:103)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/content-box-addon-for-elementor/includes/elementor-checker.php:53)

This file is part of the WordPress plugin Content Box Addon For Elementor and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/extensions-for-elementor/extensions-for-elementor.php:166)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/navmenu-addon-for-elementor/elementor-navmenu.php:111)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/royal-elementor-addons/wpr-addons.php:176)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/gradient-button-for-elementor/gradient-button-for-elementor.php:105)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/granular-controls-for-elementor/granular-controls-elementor.php:123)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/ultimate-post-kit/ultimate-post-kit.php:145)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/addon-elements-for-elementor-page-builder/elementor-addon-elements.php:24)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/designer-for-elementor-lite/designer-for-elementor-lite.php:124)

This file is part of the WordPress plugin Designer For Elementor: Lite and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/addonse/addonse.php:64)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/epic-addons-for-elementor/epic-addons-for-elementor.php:121)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/wp-form-styler/wp-form-styler.php:104)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/power-ups-for-elementor/modules/countdown/elementor/extend-elementor.php:97)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/sticky-header-effects-for-elementor/sticky-header-effects-for-elementor.php:131)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/sky-elementor-addons/sky-elementor-addons.php:115)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/fd-elementor-button-plus/fd-elementor-button-plus.php:103)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/fd-elementor-imagebox/fd-elementor-imagebox.php:105)

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

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/bdthemes-element-pack-lite/bdthemes-element-pack-lite.php:107)

This file is part of the WordPress plugin Element Pack Lite - Addons for Elementor and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare _is_elementor_installed() (previously declared in wp-content/plugins/bdthemes-prime-slider-lite/bdthemes-prime-slider.php:129)

This file is part of the WordPress plugin Prime Slider 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.