MySQL Workbench error: performance_schema.session_variables does not exist

Solution 1 Upgrade your MySql server. After the upgrade reboot the server Solution 2 This solution is not permanent. After the next reboot of the MySql server all changes will be lost. Solution 3 This solution is permanent. Locate and edit your MySql config file: my.cnf Under the [mysqld] config section add the following line: Sample:
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