Error: Call to a member function newInstance() with ActionPluginDeriver

MR over at https://git.drupalcode.org/project/ai/-/merge_requests/624

May not be the best solution around it though. Perhaps we have it return the same `$type` instead of an empty string?

I have tried to replicate this with Drupal10.3 and Drupal 10.4 without success - any other modules that might be installed that installs some extra action plugins? I tried ECA.

Adding the module list here, for anyone also trying to repliace it - all 1.1.x and Drupal 10.4:

• Drupal AI
• AI Search
• Key
• Search API
• Open AI Provider
• Milvus VDB Provider
• AI Assistant API
• AI Agents
• AI Chatbot

Hello,
I've also tried with D10.4 and 1.1.x of AI and sub modules, but no luck.

Testing in a clean installation with Drupal 10.4.7 and 1.1.x AI stack and everything works fine.

Seems like some module from the other installation is interfering on this.

Closing the issue.

We are currently experiencing the same issue on 10.4.7 with ai / ai_agent on latest dev release. It looks like it's caused by the node_unpublish_by_keyword_action and returned no attributes. Adding the above seems to have cured our problem.

Confirmed it's something with the action module. Try this...

drush pm:install action
drush cr

Visit /admin/structure/ai-agent/add

You get the white screen:

The website encountered an unexpected error. Try again later.

Error: Call to a member function newInstance() on null in Drupal\ai\Plugin\AiFunctionCall\Derivative\ActionPluginDeriver->resolveRootDataType() (line 183 of modules/contrib/ai/src/Plugin/AiFunctionCall/Derivative/ActionPluginDeriver.php).