Drupal\Core\Entity\EntityStorageException : Unable to apply data selector 'to_sid.target_id' at 'to_sid.target_id'

I cannot reproduce.
Where do you have the Workflow Transition form (on node view, edit, block, history)
Did you run update.php?

Dou you have custom code?

Hi,
I have the workflow transition in my edit node form with one action button by workflow state.
I ran the update.php after update workflow module.
I do not have custom code. I use some rules (with Rules module) based on transition change status to send some emails.
I hope this help. If you need more informations please ask !
Regards

OK, I will uninstall, donwgrade, then upgrade again,

I could reproduce.
Please test v2.1.2 or v2.0.x-dev, run update.php, and report back. Reopen if needed.

Hi, thanks for helping resolve this bug !
Nevertheless, after install version 2.1.2, I still have exactly the same issue.

Some debugging is needed.

IMO this happens because of the change(s) between WorkflowTransition::baseField['to_sid'] and ['from_sid'] being a list_string or an entity_reference.

I guess this still happens when you switch from 'action buttons' to 'select list'?

Can you determine what is being saved?
- the node/entity, or
- the WorkflowTransition

In WorkflowTransition::save(), or its more generic parent EntityBase::save() in one of the first lines, you should find the 'target_id'. Unset that, and see what happens.

Hi,
Sorry for delay but I was not available this last ten days !
The issue still exist un the last 2.1.4 version.
This error is happening when changing the state of the state field even in a select list.

I don't know how to know if its comming from WorkflowTransition::save(), or its more generic parent EntityBase::save()...
Thanks for your help.

There must be an update not executed.

what does the following report say: /drupal/admin/reports/status#error

please apply the patch and see what happens.

Are you using an Action, by any chance?

It's strange... I tried to reproduce the issue with 2.1.4 version today and there is no problem.
I keep you inform if I arrive to reproduce this issue.

In fact, my webcache site was the trouble !!! After restart apache service, the problem appear again.
I put the patch that you gave and the same error appears.
I hope this help !
Thanks for your help.

I just tried version 2.1.5 and there is still the same issue. I put version 2.0.0 that is ok for me...

Hmm, we do not get any further.
You save the entity, then set the field name and create a transition.
It seems the field is not defined yet in the entity. Can you find out in which lin of code the error occurs?
I could/should add exceptions?