Error running Drush

[alanburke]

Hi there
This looks like it could solve my issues with large batches.
But I get this error when running drush ms

[error]  Error: Class '\Drupal\migration_batch\Commands\FreidaMigrateToolsCommands' not found in Drupal\Component\DependencyInjection\Container->createService() (line 259 of /var/www/web/core/lib/Drupal/Component/DependencyInjection/Container.php) #0 /var/www/web/core/lib/Drupal/Component/DependencyInjection/Container.php(173): Drupal\Component\DependencyInjection\Container->createService(Array, 'migration_batch...')

 "drupal/migrate_plus": "^5.1",                                                    
    "drupal/migrate_source_csv": "^3.4",                                              
    "drupal/migrate_tools": "^5.0", 

Happy to help debug
Thanks