The “WordPress Fatal Error: Uncaught ReflectionException” occurs when a PHP class or method is not found or cannot be loaded properly. Bobcares handles your WordPress issues as a part of our WordPress Support Service.

WordPress Fatal Error: Uncaught ReflectionException | Introduction

WordPress websites may have the “WordPress Fatal Error: Uncaught ReflectionException” error message. Usually, this error occurs when a PHP class or method cannot load correctly because of an improper namespace, file path, or naming problem. The term “ReflectionException” designates a bug in PHP’s reflection feature, which enables programmers to investigate classes, methods, and other structures while they are running.

When WP runs into this kind of issue, it signifies that it cannot create or access a crucial part of the website. This results in a fatal failure in the PHP code execution.

WordPress Fatal Error: Uncaught ReflectionException | Possible Causes

1. Inaccurate Class Namespaces: If a class’s namespace is incorrectly declared or inconsistent with the class’s real file location, site will not be able to locate and load the class as intended.

2. Incorrect File Paths: The site won’t be able to load the PHP file containing the class or function if it is not in the expected directory or has a different name than what is supplied in the code. This will result in an issue.

3. Theme/Plugin conflict: Conflicts between multiple plugins or themes on the website can sometimes cause this problem. The use of identical classes or methods by two or more plugins can result in conflicts and the ReflectionException.

4. Corrupted Files: The site won’t be able to load the required classes or methods properly if the PHP files containing them are corrupted or incomplete. This will result in an error.

WordPress Fatal Error: Uncaught ReflectionException | Troubleshooting

We can run the following steps to fix the error:

• We’ve to check and see whether the error still occurs by disabling all plugins. Then switching to the default WordPress theme. Re-enabling each plugin and theme one at a time will help you find the one that is conflicting if the issue disappears.
• Check new codes to make sure class names, namespaces, and file paths are all proper.
• Also, check to see if the relevant code is present and that none of the involved PHP files has an issue.
• Cache files may occasionally lead to conflicts, therefore cleaning the WordPress cache might be helpful.
• Reinstalling the WordPress core files (excluding the “wp-content” folder) can fix problems brought on by corrupted core files if none of the techniques mentioned above worked.

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Conclusion

The article explains some of the possible causes of the WordPress Fatal Error: Uncaught ReflectionException. It also provides some of the methods from our Tech team to fix it.