Using Xcode 10.0 and following all the steps in the ToDo tutorial (https://docs.mongodb.com/stitch/tutorials/todo-ios/), I get this build error that I can't get past.
No such module 'FacebookLogin'
At the top of TodoListViewController.swift are the lines:
...
import UIKit
import FacebookLogin
import FacebookCore
import StitchCore
...
If I switch the order of the imports, the first under UIKit is the one reported as not found.