error 2003 (hy000):can't connect to mysql server on 'localhost:3306'(10061)

The error message you provided indicates that there is an issue with connecting to the MySQL server on 'localhost' at port 3306. There are a few possible reasons for this error:

1. MySQL server is not running: Make sure that the MySQL server is running on your local machine. You can check the status of the MySQL service and start it if it is not running.

2. Incorrect host or port: Double-check the host and port settings in your connection configuration. By default, MySQL listens on 'localhost' at port 3306, but it's possible that your setup may have different configurations.

3. Firewall or networking issues: Check if there are any firewall rules or network configurations that are blocking the connection to the MySQL server. Ensure that the necessary ports are open for MySQL communication.

4. Incorrect credentials: Verify that you are using the correct username and password to connect to the MySQL server. If you are unsure, try resetting the password or creating a new user with appropriate privileges.

Please review these possible causes and troubleshoot accordingly to resolve the connection issue.