Title: Uncaught TypeError: $(…).ajaxError is not a function Last modified: November 8, 2019 --- # Uncaught TypeError: $(…).ajaxError is not a function * Resolved [thomask](https://wordpress.org/support/users/thomask/) * (@thomask) * [6 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-ajaxerror-is-not-a-function/) * error in JS console with wordfence Uncaught TypeError: $(…).ajaxError is not a function at Object.init (admin.ajaxWatcher.1573059078.js?ver=7.4.1:7) at HTMLDocument. (admin.ajaxWatcher.1573059078.js?ver=7.4.1:83) at e (jquery-3.4.1. slim.min.js:2) at t (jquery-3.4.1.slim.min.js:2) * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Funcaught-typeerror-ajaxerror-is-not-a-function%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 5 replies - 1 through 5 (of 5 total) * [WFGerroald](https://wordpress.org/support/users/wfgerald/) * (@wfgerald) * [6 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-ajaxerror-is-not-a-function/#post-12112639) * Hey [@thomask](https://wordpress.org/support/users/thomask/), * It sounds like there might be a conflict either with the theme or one of the plugins you’re using, could you try temporarily switching to a default theme if you’re not already using one and disabling all other plugins then reactivating them one by one to see if the issue persists? * To do so I recommend the [Health Check & Troubleshooting](https://wordpress.org/plugins/health-check/) plugin which allows you to disable all plugins and switch to a default theme, but only for your user. * Please let me know how it goes. * Thanks, * Gerroald * [jhars5511](https://wordpress.org/support/users/jhars5511/) * (@jhars5511) * [6 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-ajaxerror-is-not-a-function/#post-12112686) * I no longer have a web site but I still get the Forum email. How can this be stopped? Thank yoJack * Thread Starter [thomask](https://wordpress.org/support/users/thomask/) * (@thomask) * [6 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-ajaxerror-is-not-a-function/#post-12112722) * Oh [@wfgerald](https://wordpress.org/support/users/wfgerald/), i see. The problem is, that i use the latest jQuery version (3.4.1), not that wp built-in from several years old ver. 1.2 branch. Interesting, you are the only plugin, that got problems with that. P.S: this is my setup if you want to test it with modern jquery * ``` //Remove JQuery migrate function remove_jquery_migrate($scripts) { if (!is_admin() && isset($scripts->registered['jquery'])) { $script = $scripts->registered['jquery']; if ($script->deps) { // Check whether the script has any dependencies $script->deps = array_diff($script->deps, array( 'jquery-migrate' )); } } } add_action('wp_default_scripts', 'remove_jquery_migrate'); //Making jQuery to load from Google Library function replace_jquery() { if (!is_admin()) { // comment out the next two lines to load the local copy of jQuery wp_deregister_script('jquery'); wp_register_script('jquery', '//code.jquery.com/jquery-3.4.1.slim.min.js', false, NULL,true); wp_enqueue_script('jquery'); wp_script_add_data( 'jquery', 'integrity', 'sha256-pasqAKBDmFT4eHoN2ndd6lN370kFiGUFyTiUHWhU7k8='); wp_script_add_data( 'jquery', 'crossorigin', 'anonymous' ); } } add_action('init', 'replace_jquery'); ``` * [WFGerroald](https://wordpress.org/support/users/wfgerald/) * (@wfgerald) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-typeerror-ajaxerror-is-not-a-function/#post-12155679) * Hey [@thomask](https://wordpress.org/support/users/thomask/), * I was discussing this with a colleague this morning. It seems the reason this is likely happening is that you’re loading the slim version of jQuery, which doesn’t contain all of the necessary functions/calls. If you load the full 3.4.1 version everything should work just fine. Below is an article that goes more in-depth on the topic. * [https://webdesign.tutsplus.com/tutorials/quick-tip-beware-when-using-the-slim-version-of-jquery–cms-30935](https://webdesign.tutsplus.com/tutorials/quick-tip-beware-when-using-the-slim-version-of-jquery–cms-30935) * Please let me know if this helps. * Thanks, * Gerroald * [WFGerroald](https://wordpress.org/support/users/wfgerald/) * (@wfgerald) * [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-typeerror-ajaxerror-is-not-a-function/#post-12202771) * Hey [@thomask](https://wordpress.org/support/users/thomask/), * We haven’t heard back from you in a while, so I’ve gone ahead and marked this thread as resolved. * Please feel free to open another thread if you’re still having issues with Wordfence. * Thanks, * Gerroald Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘Uncaught TypeError: $(…).ajaxError is not a function’ is closed to new replies. * ![](https://ps.w.org/wordfence/assets/icon.svg?rev=2070865) * [Wordfence Security - Firewall, Malware Scan, and Login Security](https://wordpress.org/plugins/wordfence/) * [Frequently Asked Questions](https://wordpress.org/plugins/wordfence/#faq) * [Support Threads](https://wordpress.org/support/plugin/wordfence/) * [Active Topics](https://wordpress.org/support/plugin/wordfence/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wordfence/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wordfence/reviews/) * 5 replies * 3 participants * Last reply from: [WFGerroald](https://wordpress.org/support/users/wfgerald/) * Last activity: [6 years, 5 months ago](https://wordpress.org/support/topic/uncaught-typeerror-ajaxerror-is-not-a-function/#post-12202771) * Status: resolved