With Drupal 8.8.1
Steps to reproduce:
drush migrate:file-media-fields node article image image
# added new media image field to Article
drupal generate:module # creates module bapc_file_migration_2
drush generate yml-migrate_file_to_media_migration_media
# adds config imlm files into module bapc_file_migration_2
drush en bapc_file_migration_2
drush migrate:duplicate-file-detection migration_2
# crashes per report
Crash report (listing in attached file)
Error: Call to a member function getIdMap() on null in Drupal\migrate_file_to_media\Commands\MediaMigrateCommands->duplicateImageDetection()
(line 253 of /var/www/drupalvm/web/modules/contrib/migrate_file_to_media/src/Commands/MediaMigrateCommands.php)
Crash report and module code attached
Closed: works as designed
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
I would be grateful if anyone following the issue could RTBC the related issue 📌 Report if migration name could not be found when running migrate-duplicate Fixed that improves the error message when using wrongly named migration name.