How do I check my MySQL configuration file for port conflicts?

The MySQL configuration file is `my.ini` or `my.cnf` (the exact name depends on your operating system). You can find its location within the XAMPP installation directory (usually in the `xampp/mysql` folder). Open the file in a text editor and look for the `port` directive. If it's set to a value other than 3306, you'll need to change it to 3306 (or configure MySQL to listen on port 3306). Make sure that no other application is listening on that port after making the change.