The following three errors are displayed when trying to add a new ECA model under /admin/config/workflow/eca and on the resulting screen /admin/config/workflow/eca/add/bpmn-io ( BPMN → is the modeller I've added and enabled for ECA → ).
Error: ECA ran into error from third party in the context of "Collecting all available events": Declaration of Drupal\openai_eca\Plugin\Action\OpenAIActionBase::create(Symfony\Component\DependencyInjection\ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition): Drupal\eca\Plugin\Action\ActionBase must be compatible with Drupal\eca\Plugin\Action\ActionBase::create(Symfony\Component\DependencyInjection\ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition): static
Error: ECA ran into error from third party in the context of "Collecting all available conditions": Declaration of Drupal\openai_eca\Plugin\Action\OpenAIActionBase::create(Symfony\Component\DependencyInjection\ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition): Drupal\eca\Plugin\Action\ActionBase must be compatible with Drupal\eca\Plugin\Action\ActionBase::create(Symfony\Component\DependencyInjection\ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition): static
Error: ECA ran into error from third party in the context of "Collecting all available actions": Declaration of Drupal\openai_eca\Plugin\Action\OpenAIActionBase::create(Symfony\Component\DependencyInjection\ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition): Drupal\eca\Plugin\Action\ActionBase must be compatible with Drupal\eca\Plugin\Action\ActionBase::create(Symfony\Component\DependencyInjection\ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition): static
The following modules are enabled, version 2.0.0-beta1:
Upon trying to add a new ECA model, the errors above occur.
Changing the return type declaration of \Drupal\openai_eca\Plugin\Action\OpenAIActionBase::create from ActionBase to static.
That MR removed the error and made openai_eca usable, thank you!