Changes

Select the Timer object in the timer scene, display the Assistant Editor panel and verify that it is displaying the source code for the TimerInterfaceController.swift file. Ctrl-click on the Timer object and drag the resulting line to a position immediately after the class declaration line in the Assistant Editor panel. Release the line and establish an outlet named workoutTimer. On completion of these steps the start of the TimerInterfaceController.swift file should read as follows:

import WatchKit

import Foundation