I try Control Widget I check API availability like this don't work WidgetBundleBuilder.buildBlock() so i use ControlWidgetConfigurationBuilder.buildBlock ! but it didn't work too what should i do ?

I used Xcode 16 beta 1 I would like to import the AccessorySetupKit introduced at the wwdc24 event it can imported iOS target source, but can't imported in my local package, ControllerKit what should I do ? why can't import local package ?