Using an AVPlayer returns a "non-Multipath connection" error

Question

I'm using AVKit to play a youtube URL.

I have this code inside a button action:

 @IBAction func trailerButtonAction(_ sender: Any) {
    guard let youtubeUrl = youtubeURL else { return }
    let player = AVPlayer(url: youtubeUrl)
    let playerViewController = AVPlayerViewController()
    playerViewController.player = player

    present(playerViewController, animated: true) {
        player.play()
    }
}

The URL is valid, but when I press the button, the video doesn't stop loading and I'm getting this message on Debug area:

nw_endpoint_flow_copy_multipath_subflow_counts Called on non-Multipath connection

Edit:

I found that AVPlayer doesn't support youtube URL

I having the same issue. The video is not playing and I get that as output. Were you able to fix it? — Matias Barrios, Oct 18 '19 at 12:28
This is the issue i think: https://developer.apple.com/documentation/foundation/urlsessionconfiguration/improving_network_reliability_using_multipath_tcp — Matias Barrios, Oct 18 '19 at 13:01
okey i got it. Its a network issue. try with this video : https://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4 — Matias Barrios, Oct 18 '19 at 13:32
Now, Ι didn't get the previous error. I get this: NSURLConnection finished with error - code -1002 — Alex Giatrakis, Oct 18 '19 at 15:13
Then it's for sure your connection. Can you try from a different connection — Matias Barrios, Oct 18 '19 at 15:27
Edit: Now is playing with "https://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4". I found that AVPlayer doesn't support youtube URL — Alex Giatrakis, Oct 18 '19 at 16:50

score 6 · Answer 1 · answered Oct 28 '19 at 08:30

6

I would say this log isn't necessarily relevant. I was getting this error when trying to playback on the simulator but it wasn't happening on a real device.

answered Oct 28 '19 at 08:30

CMash

1,987
22
35

The error log is unlikely related to your real issue though I think – CMash May 23 '20 at 08:50
2

nw_endpoint_flow_copy_multipath_subflow_counts Called on non-Multipath connection Getting this error – M Murteza May 23 '20 at 11:22

score 3 · Answer 2 · edited Feb 29 '20 at 18:42

One workaround would be to use a 12.4.x simulator as it does not exhibit this issue. Only the 13.x simulators are showing this error. It happens to repeatedly that it slows down Simulator to a craw until all requested tracks have been buffered.

To combat this while testing, I am either not turning on AVPlayer or I am only buffering a short track.

To cut down on the number of errors try initing your AVPlayer like so:

var avPlayer : AVPlayer = AVPlayer()

This may cut down the errors by 30%.

Using an AVPlayer returns a "non-Multipath connection" error

2 Answers2

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