Data processors do not check type before performing type-specific operations

I'm utterly confused by the issues threads here...

I'm getting an error that looks close to this one, but...?

TypeError: Drupal\typed_data\PlaceholderResolver::scan(): Argument #1 ($text) must be of type string, null given, called in docroot/modules/contrib/rules/src/Plugin/RulesDataProcessor/TokenProcessor.php on line 69 in Drupal\typed_data\PlaceholderResolver->scan() (line 182 of docroot/modules/contrib/typed_data/src/PlaceholderResolver.php).

Any idea what I need to do here?

Thanks,
Eric

Hi,
I have same error of @aitala by using token annotation in my email actions rules after update to version 4.
Thanks for help.

@aitala @dcoppel I had the same issue as the one you outlined here https://www.drupal.org/project/rules/issues/3469170 🐛 Using token annotation in rules action crash after update to version 4 Closed: duplicate .

In the send email portion of the rule I had left the language field empty as it wasn't required but after upgrading to version 4 it started throwing errors. I would suggest checking if you have any empty fields that could be returning null instead of a string.

For your reference, I have set the language field to @language.current_language_context:language_interface.

@tidunz : thanks for your reply.
You are right ! It seems that adding the language field to @language.current_language_context:language_interface in email configuration works fine now !
Thanks a lot for your help !
Regards

Seems like if "language" was working previously with a blank value, and now a value is required, then Rules should provide a default value.