#Article illustration
Foreword: Simply record the problems encountered. Although there are solutions on the Internet, you should keep them for yourself
When upgrading Wordpress, Wordpress will add the core_updater.lock record in the database wp_options table.
If you interrupt the Wordpress upgrade halfway, such as closing the current page and refreshing the page, this record will be generated in the database.
When Wordpress detects the existence of this record during the next upgrade, it will return "Another update is in progress".
solve:
Manually delete the core_updater.lock record in the wp_options table
Or execute the SQL statement: delete from wp_options where option_name='core_updater.lock';