title: Swift Error: Editor placeholder in source file
body: <p>Hello I am implementing a graph data structure. When I try to build the application the I get the error "Editor placeholder in source file"</p>
  
  <p>The full graph implementation was pulled from WayneBishop's GitHub from here <a href="https://github.com/waynewbishop/SwiftStructures" rel="noreferrer">https://github.com/waynewbishop/SwiftStructures</a></p>
  
  <pre><code>class Path {
  
  var total: Int!
  var destination: Node
  var previous: Path!
  
  init(){
      //Error happens on next line
      destination = Node(key: String?, neighbors: [Edge!], visited: Bool, lat: Double, long: Double)
       }
  }
  </code></pre>
  
  <p>I changed the <code>Node</code> Class around to:</p>
  
  <pre><code>public class Node{
  
  var key: String?
  var neighbors: [Edge!]
  var visited: Bool = false
  var lat: Double
  var long: Double
  
  init(key: String?, neighbors: [Edge!], visited: Bool, lat: Double, long: Double) {
      self.neighbors = [Edge!]()
       }
  
  }
  </code></pre>
  
  <p>This Error happens 5 times throughout the code that I have built so far. Also this question has been asked, but not answered.</p>
  
  <p>I think the error may be due to my changes to the <code>init()</code> in the <code>Node</code> class. Prior to my changes it was just <code>init()</code>. If it is, how can I add objects to the class? Pardon me if I am not correct in my programming terminology, as I am relatively new to OOP.</p>