TypeError: You provided an invalid object where a stream was expected. You can provide an Observable, Promise, Array, or Iterable

Question

I am trying to map from a service call but getting an error. Looked at subscribe is not defined in angular 2? and it said that in order to subscribe we need to

Answer 1

I'm not sure if this will help anyone, but in my case further up my chain I was using distinctUntilChanged and an exception inside a function there was manifesting with this error message.