Client does not support authentication protocol requested by server; consider upgrading MySQL client at Handshake.Seque code example
Example: 'Client does not support authentication protocol requested by server; consider upgrading MySQL client', sqlState: '08004',
$ mysql -u root -p
Enter password: (enter your root password)
mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'your_new_password';
mysql> FLUSH PRIVILEGES;
mysql> quit