“Upload: Failed to write file to disk” is a common error that occurs when uploading files in WordPress. This error can be caused by several factors, such as incorrect file permissions, a lack of server space, or a problem with the server configuration. Here are some steps you can try to fix this error:
- Check File Permissions: Make sure the file permissions for your WordPress uploads folder are set correctly. The recommended permissions for the uploads folder are 755 for the folder and 644 for the files.
- Check Server Space: Make sure that you have enough server space to upload the file. If the server is running out of space, it will not be able to write the file to disk.
- Increase the PHP Memory Limit: The error message may appear if your PHP memory limit is too low. You can increase the PHP memory limit by editing the wp-config.php file and adding this line of code: define( ‘WP_MEMORY_LIMIT’, ‘256M’ );
- Check Server Configuration: If your hosting provider is using a different web server software, like Nginx or IIS, then the server configuration may be preventing files from being written to disk. Contact your hosting provider to check if they can help you with this issue.
- Disable All Plugins: Sometimes, a plugin can cause conflicts that prevent files from being uploaded. Try disabling all plugins and then re-enabling them one by one to see if that resolves the issue.
- Update your WordPress version: Outdated version of WordPress can cause this error to happen, make sure that you are running the latest version of WordPress.
If you’ve tried these steps and the problem persists, it may be best to reach out to your hosting provider for further assistance.
Last modified: March 3, 2023