Angular2/http Exception no ConnectionBackend
Remove HTTP_BINDINGS from your code. They are deprecated and reference HTTP_PROVIDERS, so it's like you're using providers twice.
bootstrap(AppComponent, [HTTP_PROVIDERS]);Also you don't need providers: [Http] in your component, since you injected HTTP_PROVIDERS in bootstrap. Adding it to the component's providers will create new instance of the service.
@Component({ providers: []})