1251- client does not support authentication protocol MySQL error resolution

1: Problem description

stay navicat I found this problem when I logged in .

mysql Version is 8.0.

2: resolvent

1. Open the command line small black screen , Get into MySQL Of bin Catalog , Then input mysql -u root -p, Log in

2. Then input  ALTER USER ' Your account '@'localhost' IDENTIFIED WITH mysql_native_password BY ' Your password '; # Update your user's password  

3: FLUSH PRIVILEGES; # Refresh the permissions

return navicat Sign in , Find success

3: reason

The Internet says the reason for this is ：mysql8 In previous versions, the encryption rule was mysql_native_password, And in the mysql8 after , The encryption rule is caching_sha2_password, 

But after modifying the encryption rules , Although it can make you login successfully . But it may cause problems with the passwords of other accounts . I haven't met .

The safest way , take navicat Upgrade to the latest version . It can also solve this problem .