On a paragraph type, I have a field I want to migrate to a new field of type “list_string”. To do that in the deployment and like our automatic deployment begin by an update of the database follow by importation of configurations, I want to create the new field programmatically before to do the migration in another hook_update.

I’m using the example of this article https://www.metaltoad.com/blog/programmatically-importing-drupal-8-field-configurations which is perfect except I have a problem because my new field is of type list_string. My configuration for field.storage is:

langcode: fr status: true dependencies:   module:     - options     - paragraphs id: paragraph.field_types_link field_name: field_types_link entity_type: paragraph type: list_string settings:   allowed_values:     -       value: anchor       label: Ancre     -       value: internal       label: Interne     -       value: external       label: Externe   allowed_values_function: '' module: options locked: false cardinality: 1 translatable: true indexes: {  } persist_with_no_fields: false custom_storage: false 

When I create my new field based on my configuration file like that:

$field_storage_link = Drupal::service('config.storage.sync')->read('field.storage.paragraph.field_types_link');  Drupal::entityTypeManager()->getStorage('field_storage_config')   ->create($field_storage_link)   ->save(); 

I have this error.

[error] The configuration property settings.allowed_values.0.label.0 doesn’t exist.

If I remove the list of allowed_values, it works and I can add my field to paragraphes bundles but in this case, I’m not able to do my migration properly because the allowed_values of my field are empty and I don’t know how to update it programmatically. Someone can explain what’s is the problem in my code and how to fix it?