I am running a local Drupal 8 site via Aquia DevDesktop. I enabled the Migrate modules: Migrate, Migrate Drupal, Migrate Drupal IU, Migrate Plus and Migrate Tools. When I run a migrate command in drush, such as migrate-status, I get an error, "unknown database". Settings.php is correct and the site if working fine. I am running drush 8.1.17 and other drush commands work ok. Any suggestions?