Navicat failed to connect to mysql, error 1045-access denied for user'root'@localhost'(using password:YES)

the reference answer GPT ᴼ ᴾ ᴱ ᴺ ᴬ ᴵ < br / > this error usually indicates that you use the user name or password cannot be authenticated. Here are some possible causes and solutions to this error:

1. The user name or password you entered is incorrect. Please check your username and password to make sure they are correct.
2. You are trying to connect to MySQL as user root, but the user may be led or not configured with a password. Try to connect with another user and make sure you have a password for that user.
3. You may not have granted permission to Navicat's IP address in MySQL. Try to grant access to this address and make sure you are using the correct IP address.
4. Your firewall or security group may have prevented Navicat from communicating with MySQL. Please check your firewall or security group Settings and make sure Navicat can connect to MySQL.

If the above methods do not solve the problem, you can try to reset the password of the MySQL root user or reinstall MySQL.