Unable to open file for reading on All-in-One Migration on wordpress after searching for solutions

After I searched solutions:

1. maximize upload file: https://help.servmask.com/2018/10/27/how-to-increase-maximum-upload-file-size-in-wordpress/
2. From reading this: https://wordpress.org/support/topic/unable-to-open-file-for-reading-5/, but not found the basic version to download this plugin: https://import.wp-migration.com/en/

How do we solve this issue?

A solution found with 4 easy steps:

1. Uninstall the All-in-One Migration

2. download the file https://import.wp-migration.com/all-in-one-wp-migration-file-extension.zip and upload this plugin

3. reinstall the All-in-One Migration

4. Import