How to fix "jQuery is not defined" error.

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JQuery is not defined error in console
If you see a "jQuery is not defined" error, it means WordPress can't load it correctly. We've helped countless users solve this problem over the years and have learned that it often stems from a few common causes:

Theme or Plugin Not Updated: Many users encounter latvia phone number this error when their theme or plugin is not updated to the latest version of WordPress. This usually happens after a major WordPress update.
Improper script loading: jQuery must be loaded before other JavaScript files. Otherwise, scripts that rely on jQuery will crash. This usually happens if the theme or plugin is not properly coded to load the script.
JavaScript conflicts: Other scripts executed on the site may conflict with jQuery, especially if they are not loaded correctly. This conflict can break jQuery, causing errors.
CDN failure: Some websites rely on jQuery hosted on a content delivery network (CDN). If the CDN is unavailable or blocked, the website will not be able to load jQuery, resulting in errors.
All of these issues can prevent jQuery from functioning smoothly. But don’t worry: with our experience, we can guide you to a solution to your problem.

When you encounter this error, there are several ways to resolve it. Here are the most effective methods we use to solve this problem.

We recommend trying these strategies in no particular order, but if you want to start with a specific strategy, you can use the jump links below:

Update WordPress, themes and plugins
Check if jQuery is loaded correctly
Added jQuery fallback
Fix script loading order (advanced)
Edit wp-config.php to fix jQuery loading issues
Get premium support to fix errors for you
Additional Resources: Troubleshooting WordPress Errors
We’ll go over each method in detail and provide you with some additional resources for troubleshooting WordPress errors. Let’s get to the point!

1. Update WordPress, themes and plugins
Outdated software is one of the most common causes of "jQuery not defined" errors. Outdated themes or plugins may be incompatible with the latest version of WordPress, causing script conflicts. How to solve the problem: