The CalendarHelper class references the constant DATE_STORAGE_FORMAT from DateTimeItemInterface, which is provided by the datetime module. This creates an implicit dependency on the datetime module. If the datetime module is not enabled, it results in an error:
Class "Drupal\datetime\Plugin\Field\FieldType\DateTimeItemInterface" not foundThis issue occurs because the datetime module is not a declared dependency of the module or code using CalendarHelper.
Don't enable the datetime module and try to use the views templates.
datetime module as a dependency in the info.yml file of the module using CalendarHelper.dependencies: - datetime:datetime
CalendarHelper to indicate that it requires the datetime module.CalendarHelper works correctly with the datetime module enabled.Active
1.0
Code
Resolve #3489799 "Dependency on datetime"
Automatically closed - issue fixed for 2 weeks with no activity.