title: Expression implicitly coerced from 'String? Not printing an optional
body: <p>I thought this error was caused when trying to print optionals. I removed the print commands, and I still get the waring. I have screen shotted my code (see attached). Im creating user profile for loving using firebase. Thank you in advance for the help.<a href="https://i.stack.imgur.com/FewSu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/FewSu.png" alt="enter image description here"></a></p>
  
  <p>Code:</p>
  
  <pre><code>func createProfile(_ user: User) {
      let newUser = ["email": user.email,
                      "photo": "https://firebasestorage.googleapis.com/v0/b/frostingtest.appspot.com/o/ricks.jpg?
                      alt=media&amp;token=d1f266e0-32aa-465d-bc42-82fdbe84881b"]
  
      self.databaseRef.child("profile").child(user.uid).updateChildValues(newuser) { (error, ref) in
          if error != nil {
              print(error)
              return
          }
          print("Profile Created Sucessfully")
      }
  }
  </code></pre>