cas wrote: ↑13 Mar 2020, 09:49
What version do you run.
I have 2.21.1 and do not have the string in config_defaults_inc.php.
I have the latest version 2.23.0
I have solved my problem, the server use php 7.4 by default while mantis use php 7.0, and for php 7.4, mysql was not installed.
After install, the problem disappear .