>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3047201. --> Reported by: [Christopher Riley](https://www.drupal.org/user/592880) >>> <p>Trying to do a migration on a 8.7-Beta and running into the following message:</p> <p>"The d7_message_source plugin must define the source_module property."</p>