ServiceNotFoundException: You have requested a non-existent service "crm.user".

Problem/Motivation

Getting this error when trying to hook up on an existing site:

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "crm.user". Did you mean one of these: "crm.user_contact_mapping", "crm.user_field_mapping", "crm.user_contact_field_values_storage", "crm.user_contact_display_sync", "crm.user_create", "crm.user_contact_mapping_settings_config"? in Drupal\Component\DependencyInjection\Container->get() (line 157 of core/lib/Drupal/Component/DependencyInjection/Container.php).

Drupal::service('crm.user') (Line: 365)
Drupal\crm\Hook\UserHooks::userFormEnsureContactSubmit(Array, Object) (Line: 108)
Drupal\Core\Form\FormSubmitter->executeSubmitHandlers(Array, Object) (Line: 45)
Drupal\Core\Form\FormSubmitter->doSubmitForm(Array, Object) (Line: 615)
Drupal\Core\Form\FormBuilder->processForm('user_form', Array, Object) (Line: 347)
Drupal\Core\Form\FormBuilder->buildForm(Object, Object) (Line: 73)
Drupal\Core\Controller\FormController->getContentResult(Object, Object)
call_user_func_array(Array, Array) (Line: 123)

Steps to reproduce

Enable CRM on an existing site, along with the crm_migration_node site.

Set the CRM options, Fire event on user insert, Lookup Contact, and Create Contact.

Set "Show mapped fields on user forms", and select several fields to map.

Edit an existing user and save -- get this error.

Proposed resolution

It looks like a service dependency that does not exist - got renamed?

Remaining tasks

User interface changes

API changes

Data model changes