在设置mysql-8 zip版本时，我得到了同样的错误。最后，切换到无缝工作的安装版本。在安装过程中，会提示设置root密码。一旦设置好，它就一定能工作。

打开并编辑/etc/my.cnf或/etc/mysql/my.cnf，具体取决于你的发行版。 在[mysqld]下添加skip-grant-tables 重新启动MySQL 你现在应该可以使用下面的命令MySQL -u root -p登录MySQL 运行mysql> flush特权; 设置新密码ALTER USER 'root'@'localhost' IDENTIFIED by 'NewPassword' 回到/etc/my.cnf，删除/comment skip-grant-tables 重新启动MySQL 现在你可以用新密码mysql -u root -p登录了

修复macOS

Install MySQL from https://downloads.mysql.com/archives/community/ (8.x is the latest as on date, but ensure that the version is compatible with the macOS version) Give password for root (let <root-password> be the password) during installation (don't forget to remember the password!) Select Use Legacy Password Encryption option (that is what I had used and did not try for Use Strong Password Encryption option) Search and open MySQL.prefPane (use search tool) Select Configuration tab Click Select option of Configuration File Select /private/etc/my.cnf From terminal open a new or existing file with name /etc/my.cnf (vi /etc/my.cnf) add the following content: [mysqld] skip-grant-tables Restart mysqld as follows: ps aux | grep mysql kill -9 <pid1> <pid2> ... (grab pids of all MySQL related processes) mysqld gets restarted automatically Verify that the option is set by running the following from terminal: ps aux | grep mysql > mysql/bin/mysqld ... --defaults-file=/private/etc/my.cnf ... (output) Run the following command to connect (let mysql-<version>-macos<version>-x86_64 be the folder where MySQL is installed. To grab the actual folder, run ls /usr/local/ and copy the folder name): /usr/local/mysql-<version>-macos<version>-x86_64/bin/mysql -uroot -p<root-password>

在我的Debian 10的情况下，错误

ERROR 1698 (28000): Access denied for user 'root'@'localhost'

(好方法)解决了

sudo mysql -u root -p mysql

不好的方法:

mysql -u root -p mysql

在你的MySQL Workbench中，你可以到左边的侧边栏，在Management下选择“Users and Privileges”，在User Accounts下点击root，在右边的部分点击tab“Account Limits”增加最大查询，更新等，然后点击tab“Administrative Roles”，勾选复选框赋予该帐户访问权限。

根据我的经验，如果你没有sudo，它是行不通的。所以确保你的命令是;

sudo mysql -uroot -p