Game Center match is invalid always - swift

Question

I'm trying to learn how to build a Game-Center based app. its a turn based extremely simple game that just basically logs what button you press and sends it to he other player. I am having a very hard time implementing all the game center features since Apple's documentation has not been updated for Swift. I've been guessing at everything and reading off Objective-C examples and hoping for the best (somehow I've managed to get a few things going, altough I'm not sure if they are correct)
Anyways, I made a new iCloud account for my Simulator and ran the app on my phone and the simulator simultaneously, trying to get them to match up in a game. However I always get a "match request is invalid" error:
EDIT I have registered the app in iTunesConnect, I've implemented leaderboards and tested them and they work (So I assume the iTunesConnect thing is properly working and set-up)
#IBAction func startTapped(_ sender: Any) {
let request = GKMatchRequest()
request.maxPlayers = 2
request.minPlayers = 1
let mmvc = GKMatchmakerViewController(matchRequest: request)
mmvc?.matchmakerDelegate = self
present(mmvc!, animated: true, completion: nil)
}
extension HomeVC: GKGameCenterControllerDelegate
{
func authenticatePlayer()
{
//CALLED ON VIEWDIDAPPEAR
let localPlayer = GKLocalPlayer.localPlayer()
localPlayer.authenticateHandler = {
(view, error) in
if view != nil
{
self.present(view!, animated: true, completion: nil)
} else {
print("AUTHENTICATED!")
print(GKLocalPlayer.localPlayer().isAuthenticated)
}
}
}
func gameCenterViewControllerDidFinish(_ gameCenterViewController: GKGameCenterViewController) {
gameCenterViewController.dismiss(animated: true, completion: nil)
}
}
Here's the matchmaking code. Note I can get the Game Center screen to appear and tell me "how many players" and that its missing a player and gives the choice to invite friends and all that
extension HomeVC: GKMatchmakerViewControllerDelegate {
func matchmakerViewControllerWasCancelled(_ viewController: GKMatchmakerViewController) {
print("match was cancelled")
viewController.dismiss(animated: true, completion: nil)
}
func matchmakerViewController(_ viewController: GKMatchmakerViewController, didFailWithError error: Error) {
print("didFailwithError: \(error.localizedDescription)")
}
func matchmakerViewController(_ viewController: GKMatchmakerViewController, didFind match: GKMatch) {
print("Match found, ID: \(match.description)")
let gameScreenVC = self.storyboard?.instantiateViewController(withIdentifier: "mainGame") as! ViewController
gameScreenVC.providesPresentationContextTransitionStyle = true
gameScreenVC.definesPresentationContext = true
gameScreenVC.modalPresentationStyle = UIModalPresentationStyle.fullScreen
gameScreenVC.modalTransitionStyle = UIModalTransitionStyle.crossDissolve
match.delegate = gameScreenVC
self.present(gameScreenVC, animated: true, completion: nil)
}
}

Answer 1

If anyone is having this issue I fixed it by just replacing the "minelayers and max-layers" with the same amount, so the code now looks like this:
#IBAction func startTapped(_ sender: Any) {
let request = GKMatchRequest()
request.maxPlayers = 2 //min and max should be the same
request.minPlayers = 2 //apparently they need to be the same
let mmvc = GKMatchmakerViewController(matchRequest: request)
mmvc?.matchmakerDelegate = self
present(mmvc!, animated: true, completion: nil)
}
apparently Game Center does not like a min.player count of 1, its invalid. but thats how I got it to stop giving me Invalid Match Request warnings