Resolving Upload and Import Issues with WP All-in-One Migration Plugin Print

  • Updated on 07-May-2024
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Migrating your WordPress website can seem daunting, especially if you encounter issues with tools like the All-in-One WP Migration plugin. This guide is designed for novices to help you navigate and resolve some of the most common migration challenges.

Understanding the Basics

What is All-in-One WP Migration Plugin?

This plugin is a popular tool for moving your WordPress site from one host to another. It packages your website's files and database into a single file, simplifying the migration process.

Why Issues Occur?

You might face issues like upload failures or the migration process getting stuck during migration. This usually happens due to limitations in the free version of the plugin, server configurations, or large size of the website.

Step-by-Step Solutions to Common Problems

Problem 1: Upload Limit is Too Low

Symptom: Your migration file (.wpress) won’t upload completely.

How to Fix:

  1. Increase PHP Upload Limits:
    • Find the PHP configuration settings in your hosting account (often in cPanel).
    • Increase the values of upload_max_filesize and post_max_size (e.g., to 128M or 256M).
    • If unsure, ask your hosting provider for assistance or refer to their knowledge base.

Problem 2: Migration Process Gets Stuck

Symptom: The migration progress stops, often at 100%.

How to Fix:

  1. Use an Older Version of the Plugin:
    • Uninstall your current All-in-One WP Migration plugin.
    • Download an older version (like 6.7) from the WordPress plugin repository.
    • Install this version through your WordPress dashboard (Plugins > Add New > Upload Plugin).
    • Upload your .wpress file to wp-content/ai1wm-backups via your hosting file manager or FTP.
    • Go to the plugin's 'Backups' section and click 'Restore' on the uploaded file.

Problem 3: Website is Too Large

Symptom: Your website is over 512 MB, and the plugin won’t handle it.

How to Fix:

  1. Increase the Plugin’s Upload Limit (Not Recommended):

    • Go to Plugins > Editor in your WordPress dashboard.
    • Select All-in-One WP Migration and edit the constants.php file.
    • Find and increase the line that sets the maximum file size (e.g., change 28 to 32).
    • Note: This method is technically advanced and may pose security risks.
  2. Consider Upgrading to Premium:

    • The premium version of the plugin supports larger websites.
    • This is the safest and most straightforward option.

Additional Tips

  • Manage Disk Space: Ensure your hosting account has enough space for the migration. Delete unnecessary files if needed.
  • Handle Timeout Issues: Increase max_execution_time in your .htaccess or wp-config.php file to allow longer operations.
  • Check Hosting Settings: Some hosting providers have strict limits. Consider switching to a host like intoHOST for better flexibility.


If All-in-One WP Migration doesn't suit your needs, explore other plugins like Duplicator for WordPress migration.


Migrating your WordPress site doesn’t have to be a headache. By understanding and applying these solutions, you can overcome common hurdles in the migration process. Remember, if you feel overwhelmed, contacting your hosting provider's support team or consulting a professional can be a great help.

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