Hi, @kasim! I have checked your code. SidePageComponent seems to try to inject an OnsNavigator instance, but the ancestor components of SidePageComponent have no ons-navigator in their templates. So the hierarchical dependency injector of Angular could not find a corresponding provider for OnsNavigator instance which registered in ContentPageComponent and reported the error like No provider for OnsNavigator. You can fix this problem by connecting SidePageComponent with ContentPageComponent via a service. The official guide for Angular component interaction is here: https://angular.io/docs/ts/latest/cookbook/component-communication.html