mysqldump version mismatch

The error mysqldump version mismatch is usually caused by running a mysqldump client that is not compatible with the server version. To fix this error, you need to make sure that the mysqldump client version is the same or compatible with the version of the MySQL server you're trying to backup.

Checking the current versions

You can check the version of your MySQL server by running the following command in the MySQL client:

mysql> SELECT version();

The version of mysqldump can be checked using the following command:

mysqldump --version

Version compatibility

In general, mysqldump is compatible with the same major version of the MySQL server, so you should use the same major version of mysqldump as the MySQL server. For example, if you have MySQL server version 8.0.x, you should use mysqldump version 8.0.x.

Additionally, compatibility between minor versions of the MySQL server and mysqldump can also be found in the MySQL release notes. The release notes usually state which versions of mysqldump are compatible with each release of the MySQL server.

Once you have the version number, install a compatible version of the mysqldump on your system. Then, try running the mysqldump command again to see if the error has been resolved.