Error message : Call to undefined function request_filesystem_credentials()

My site has been updated automatically to WordPress 4.9.3. After that, there is one error message in error log :

PHP Fatal error: Call to undefined function request_filesystem_credentials() in ../wp-admin/includes/class-wp-upgrader-skin.php on line 93

How can I resolve this message?

Thank you.

Upgrade manually to 4.9.4, it’s a known issue with 4.9.3