Am trying to customize migrations so that i can map the data to specific fields but after i edit files am not able to place then to active configuration successfully.
My process so far
how i generated the files
Step 1. Generation of migration files
drush migrate:upgrade --legacy-db-key=migrate --legacy-root=http://localhost/drupal7 --configure-only
Step 2. Creation of a custom module
modules/custom/my_custom_migrations
inside i have config/install folder
Step 3. Exporting the migrations created to my module
drush cex --destination=/Users/mac/Sites/drupal9/web/modules/custom/my_custom_migrations/config/install
Step 4. I modified the yml files then tried the following import stript
drush cim —source=/Users/mac/Sites/drupal9/web/modules/custom/my_custom_migrations/config/install
this deleted all my migrations on the active configuration and never updated with my customized ones
Step 5. I then added the my_custom_migrations.info.yml in the custom module and run
drush en my_custom_migrations -y
this created my migrations in the active configuration but i got and error when trying drush ms
part of error
[error] TypeError: Argument 1 passed to Drupal\migrate\Plugin\Migration::getProcessNormalized() must be of the type array, null given, called in /Users/mac/Sites/drupal9/web/core/modules/migrate/src/Plugin/Migration.php on line 706 in Drupal\migrate\Plugin\Migration->getProcessNormalized() (line 451 of /Users/mac/Sites/drupal9/web/core/modules/migrate/src/Plugin/Migration.php) #0 /Users/mac/Sites/drupal9/web/core/modules/migrate/src/Plugin/Migration.php(706): Drupal\migrate\Plugin\Migration->getProcessNormalized(NULL)
How can i either fix the error or make the drush cim to work as it should
I have figured how to update the migrations in the active configuration
Step 1. Config export everything to a folder in my case i added a tmp folder in config in my custom module
drush cex --destination=/Users/mac/Sites/drupal9/web/modules/custom/my_custom_migrations/config/install
Step 2. Edit the yml files that you want then run the Config import status which will only import the migrations that have changes to your active configuration
drush cim status --source=/Users/mac/Sites/drupal9/web/modules/custom/my_custom_migrations/config/tmp