Upgrade to Drupal 10.3 - "plugin does not exist"

In my case, I have Drupal core 10.2.6 and Rules module 8.x-3.0-alpha8 , and when it try to update de Drupal core to 10.3.0 version I get the following error:

The website encountered an unexpected error. Try again later.

Drupal\Component\Plugin\Exception\PluginNotFoundException: The "user_role" plugin does not exist. Valid plugin IDs for Drupal\rules\Core\ConditionManager are: rules_node_is_promoted, rules_entity_is_of_type, rules_node_is_of_type, rules_entity_has_field, rules_user_has_role, rules_data_is_empty, rules_data_comparison, rules_path_has_alias, rules_entity_field_access, rules_node_is_published, rules_path_alias_exists, rules_list_contains, rules_node_is_sticky, rules_text_comparison, rules_list_count_is, rules_user_is_blocked, rules_entity_is_of_bundle, rules_entity_is_new in Drupal\Core\Plugin\DefaultPluginManager->doGetDefinition() (line 53 of core/lib/Drupal/Component/Plugin/Discovery/DiscoveryTrait.php).

I also get this error message - concerning the missing plugin user_role.

Same issue for me !

Also seeing this with a fresh install of the Rules module with zero rules added.

Uninstalling the Rules module fixes the issue.

The rules module replaces the core ConditionManager with one that only knows about \Drupal\Core\Condition\Annotation\Condition, while core 10.3 uses \Drupal\Core\Condition\Attribute\Condition.

@see 📌 Convert Condition plugin discovery to attributes Fixed

End result is that Rules is unable to locate any of the core conditions that have been converted.

Duplicate of 📌 [10.3] Update ConditionManager to support PHP Attributes Active

I have the same issue after update from 10.2.7 to 10.3.0
So the solution is to uninstall rules?

I have the error going from 10.2.7 to 10.30.0 is there a fix for this?

The website encountered an unexpected error. Try again later.

Drupal\Component\Plugin\Exception\PluginNotFoundException: The "user_role" plugin does not exist. Valid plugin IDs for Drupal\rules\Core\ConditionManager are: rules_data_comparison, rules_data_is_empty, rules_list_contains, rules_list_count_is, rules_entity_has_field, rules_entity_is_new, rules_entity_is_of_bundle, rules_entity_is_of_type, rules_node_is_of_type, rules_node_is_promoted, rules_node_is_published, rules_node_is_sticky, rules_path_alias_exists, rules_path_has_alias, rules_text_comparison, rules_entity_field_access, rules_user_has_role, rules_user_is_blocked in Drupal\Core\Plugin\DefaultPluginManager->doGetDefinition() (line 53 of core/lib/Drupal/Component/Plugin/Discovery/DiscoveryTrait.php).

I think it is urgent as this upgrade crash a lot of websites. Is it possible to disable rules? I think no as it is required by other modules too. So wait for patch or new version?

@simon23 and @tarasiadis: This issue is closed as a duplicate, see 📌 [10.3] Update ConditionManager to support PHP Attributes Active instead.