Written by Admin on 2025-05-06

Troubleshooting Error: "gatsby cannot read property internal of null wordpress"

If you are working with Gatsby and WordPress, you may have encountered an error that reads, "gatsby cannot read property internal of null wordpress." This error can be frustrating, but fortunately, it is usually easy to fix.

What causes the error?

The "gatsby cannot read property internal of null wordpress" error occurs when Gatsby is unable to access the data returned from your WordPress site. This can happen for a number of reasons, including:

• Incorrect API endpoint: If you have set up your Gatsby site to use the WP-API plugin for WordPress, you need to make sure that you are using the correct API endpoint.
• Invalid data returned: If the data returned from WordPress is malformed or missing required fields, Gatsby may not be able to read it properly.
• Plugin or theme conflict: If you are using a custom WordPress plugin or theme that conflicts with Gatsby, it may cause this error.

How to fix the error

Here are some steps you can take to fix the "gatsby cannot read property internal of null wordpress" error:

1. Check the API endpoint. Make sure that you are using the correct endpoint in your Gatsby site's configuration file. The endpoint should be in the format:

   https://your-wordpress-site.com/wp-json

2. Verify the API works properly. Try accessing the API endpoint in your browser and see if it returns data in the expected format. If you receive an error, there might be an issue with the WP-API plugin.

3. Check the WordPress plugin or theme. Deactivate any custom plugins or themes you are using and see if the error goes away. If it does, you'll need to identify which theme or plugin is causing the conflict and either deactivate it permanently or update it to fix the issue.
4. Debug the Gatsby site. Add console.log statements to your Gatsby code to help identify exactly where the error is occurring. Check all of the data that gets passed between WordPress and Gatsby to make sure that everything is formatted correctly.

Conclusion

If you encounter the "gatsby cannot read property internal of null wordpress" error while working with Gatsby and WordPress, don't panic. Follow the steps above to troubleshoot the issue and get your site back up and running as quickly as possible.