Game Center APIs fail with error (failed_to_load_achievements and failed_to_send_achievement)

[munish-techindustan]

Package version: 5.0.0
Flutter version: 3.35.3
Platform: iOS

Errors:

loadAchievements()

PlatformException(
  failed_to_load_achievements,
  A server with the specified hostname could not be found.,
  ...
)

unlock() / achievement report

PlatformException(
  failed_to_send_achievement,
  A server with the specified hostname could not be found.,
  ...
)

Where they throw:

failed_to_load_achievements → Achievements.loadAchievements() in darwin/Classes/Achievements.swift when GKAchievement.loadAchievements() fails

failed_to_send_achievement → Achievements.report() in darwin/Classes/Achievements.swift when GKAchievement.report() fails

Steps to reproduce:

• Sign in to Game Center on device
• Call GamesServices.loadAchievements() and/or GamesServices.unlock()
• Error occurs when Apple Game Center servers cannot be reached

Expected: Achievements load and/or report successfully

Actual: PlatformException with hostname/DNS error

Notes: Not affecting all users, but failing for a significant number of users

[theLee3]

This is due to lack of internet, a temporary outage of Game Center, DNS configuration issues or blocked traffic (i.e. VPN), or potentially a corrupt login session.

There is nothing within our plugin that would cause this or that can address this.

VPNs are often the culprit, so encourage the users to try without one. If that doesn't work or they are not using a VPN, have them toggle their connections and undo any DNS changes on their device. Then have them re-authenticate with Game Center if still not resolved.