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Troubleshooting Common JavaScript and jQuery Conflicts in Ultimate Addons for Elementor

17 threads Sep 16, 2025 Plugin → Ultimate addons for elementor

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JavaScript errors, particularly those involving jQuery, are a common source of frustration when using page builder plugins. Users of Ultimate Addons for Elementor (UAE) may encounter console errors that break site functionality, such as sliders or forms not working correctly. This guide will help you understand why these conflicts happen and provide practical steps to resolve them.

Why Do jQuery and JavaScript Errors Occur?

These errors typically stem from one of a few root causes:

  • Plugin or Theme Conflicts: Another plugin or your theme might be loading an incompatible or duplicate version of jQuery, causing a conflict with the version UAE expects.
  • Incorrect Script Handling: Some plugins may try to load scripts from external CDNs (like code.jquery.com) instead of using the version bundled with WordPress, which is a common cause of the Uncaught TypeError: Cannot read properties of undefined error.
  • Outdated Software: Running an outdated version of UAE, Elementor, WordPress, or your theme can lead to compatibility issues.

How to Troubleshoot and Fix jQuery Conflicts

Step 1: Perform a Conflict Test

The first step is always to identify the source of the conflict.

  1. Temporarily switch your theme to a default WordPress theme like Twenty Twenty-Four.
  2. Deactivate all plugins except for Elementor and Ultimate Addons for Elementor.
  3. Check if the JavaScript error disappears. If it does, reactivate your plugins one by one, checking the console for errors after each activation, until you find the culprit.

Step 2: Check for Incorrect Script References

As seen in the sample threads, a major cause of conflict is manually adding outdated jQuery references. If you have code in your theme's header.php or footer.php that looks like this, remove it:

<script type="text/javascript" src="https://code.jquery.com/jquery-1.7.2.min.js"></script>
<script type="text/javascript" src="https://code.jquery.com/ui/1.10.4/jquery-ui.js"></script>

WordPress core includes jQuery. Plugins and themes should always enqueue it properly using wp_enqueue_script() instead of hardcoding it. Hardcoded references will load a second copy of jQuery, which breaks the instance that UAE and other plugins rely on.

Step 3: Update Everything

Ensure all your software is up to date. This includes:

  • WordPress
  • Elementor & Elementor Pro
  • Ultimate Addons for Elementor
  • Your theme
  • All other plugins

Developers frequently release updates to patch bugs and improve compatibility. An update may already contain the fix for your issue.

Step 4: Review the Browser Console

Specific error messages can point directly to the problem. Here’s how to interpret them:

  • Uncaught TypeError: Cannot read properties of undefined (reading 'tools'): This often indicates that a script is trying to run before jQuery is fully loaded or is conflicting with another library.
  • Uncaught TypeError: e.indexOf is not a function: This is typically caused by code that is incompatible with the newer version of jQuery included in WordPress.

What If the Problem Persists?

If you have isolated the issue to UAE but the steps above don't resolve it, the next best step is to gather specific information for further troubleshooting. Be prepared to share:

  • The exact versions of WordPress, Elementor, and UAE you are using.
  • The specific UAE widgets you are using on the page where the error occurs.
  • A screenshot or copy of the exact error message from your browser's console.

With this information, other users and community members can help identify if the issue is a known bug or a unique configuration conflict.

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