Breadcrumbs in Angular

I have just started learning Angular. And I am trying to implement breadcrumbs in my angular project. Have 4 child components from one parent component. I have tried using xng-breadcrumb and some other libs. But on clicking on the second child component, instead of appending it to the breadcrumbs , the breadcrumb shown is replaced by the second component name.

What can be a solution for this?