I'm working on a project for school, and I need to show I can use a service (which apparently I can't) anyways Everything will be rendering fine on my screen. and as soon as I try to inject my service, specifically this line (as well as the other way to inject a service) constructor (private apiService: ApiService){} the entire thing vanishes from my browser. I have no clue why and localhost/4200/map immediately reverts back to localhost without rendering anything. And the there doesn't seeem to be any errors showing. I've read over several things on the angular website but I can't tell what I'm doing wrong. Seems like it should be working to me. Continue reading...