Cannot Tags and Groups fields in Webform CiviCRM Integration - Drupal 8

Question

I try to create a contact in CiviCRM 5.9.1 with a Webform and Webform CiviCRM Integration (all in Drupal 8.6.7),

But when I choose the needed fields in CiviCRM and I use the ENABLE TAGS AND GROUPS FIELDS : no field appears.

If I still save then I get in Drupal an Error: Class 'Drupal\webform_civicrm\CRM_Core_BAO_Tag' not found in Drupal\webform_civicrm\FieldOptions->get()

To recover the use, I need to delete the Webform. All of the other fields appears and can be selected in the Webform : Phone, Email, etc.

Is this, reveals a bug in Webform CiviCRM Integration or could it be something wrong in the Tags and Groups ?

Also if I select Yes for Tags and Groups fields, then impossible to get fields for Phone, Email, etc.

With Tags and Groups fields on No

With Tags and Groups fields on Yes, no other fields can be selected

Answer 1

I suspect d8 webform_civicrm does not yet have those fully functioning. KarinG is leading the project and would welcome assistance and/or funding I suspect. I think the most recent update is in this blog where she says

Drupal 8 port! The D8WFC project kicked off in August 2018 and we've already got Contacts, Memberships and ... Contributions working. Yes! We're transacting through live pathways. Try out the dev version: https://www.drupal.org/project/webform_civicrm/releases/8.x-5.x-dev if you feel adventurous: it currently contains Contacts and Membership functionality. If you want to try Contributions you'll need to check our GitHub repo: https://github.com/colemanw/webform_civicrm/tree/8.x-5.x - and keep an eye on PRs against that branch