Unable to read WCSession singleton instance of WatchConnectivity framework

Question

I m trying to work on WCSession default instance. But it gives the following complier issue.

Defination of default Instance

Answer 1

Try this:

var session : WCSession!

func startSession() {
    if WCSession.isSupported() {
        session = WCSession.default()
        session.delegate = self
        session.activate()
    }
}

Call startSession() wherever you want to activate your WCSession. Preferably in AppDelegate and ExtensionDelegate.