wpsnoop Fatal error: Cannot redeclare install()

If you are dealing with a WordPress issue where a PHP Function install() 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 31 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 31 different instances of potential conflicts where different plugins or themes share the function name.

Examples of this error include:

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/contactform/form.php:47)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/best-custom-css/customcss.php:131)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/wp-loopfuse-oneview/loopfuse.php:256)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/compatiblizr/app.php:134)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/apache-password-protect/apache-password-protect.php:17)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/wordpress-automatic-upgrade/wordpress-automatic-upgrade.php:1458)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/yourmarketingguy/index.php:78)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/video-sidebar-widget/videourl.php:16)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/wp-offline-browser/includes/wpofflinebrowser.php:14)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/plot-my-tweets-and-posts/plotmypostsandtweets.php:24)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/efront/efront.php:31)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/codeshield/protect.php:68)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/wp-revisionpost/revision-post.php:142)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/wp-better-workflow/wp-statsmechanic.php:39)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/google-map-tab/inc/db-settings.php:6)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/mfs-survey/install-uninstall-tables.php:15)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/tinyfeedback/tinyFeedback.php:47)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/mechanic-visitor-counter/wp-statsmechanic.php:23)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/free-event-banner/event_banner.php:73)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/laan-links-generator/laan_links.php:26)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/trucker-to-trucker-listings/TruckerToTrucker_Listings.php:31)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/notification-widget/notification_widget.php:15)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/everypay-payment-gateway/everypay-payment-gateway.php:74)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/wp-einsatz/wp-einsatz.php:17)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/jl-points-rewards/JLPointsRewards.php:39)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/jl-points-rewardses/JLPointsRewards.php:39)

This file is part of the WordPress plugin JLPoints&Rewards(en español) and could be interacting with another theme or plugin and causing a fatal error.

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/easy-contact-form-lite/easy-contact-form-lite.php:49)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/electric-studio-download-counter/electric-studio-download-counter.php:48)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/contact-form-wordpress/form.php:40)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/skybox-checkout-for-woocommerce/skyboxcheckout.php:70)

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

PHP Fatal error: Cannot redeclare install() (previously declared in wp-content/plugins/community-gradebook/files/install.php:184)

This file is part of the WordPress plugin Community Gradebook 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.