UnityEngine.Social not working with IOS 8. Unsure how to resolve the issue - unity3d

When running our game on any device that uses game center we get an error that is related to specifically the authentication/connection from the game to Game Center. Now this works on IOS 7 versions, just not with IOS 8.
We get this return from the authentication attempt,
Failed to authenticate local user The requested operation could not be completed because this application is not recognized by Game Centre.
Has anyone encountered this issue/problem? is this a unity related issue, or something from xCode and/or Apple and Game Centre?
Built from xCode v6.0.1, to IOS 8.

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How does fing app still getting mac address although it is not allowed in iOS 11

I need to get mac address of device.I know it is not possible after iOS 11 but somehow Fing app still getting mac address for some devices.How it possible .I need to achieve exactly same things which described here but this answer was for iOS7 but now current version is iOS 12.for help i uploaded Fing app Screen shoot from my Iphone

Unity3D Game Crashes in Xcode 9 - iOS 11

Today I launched fully working Unity3D game in Xcode 9, iPhone 6 running iOS 11. Its crashing on launch.
Every time crashing in same function : SetupMetalFBO
Here is console log:
validateRenderPassDescriptor:487: failed assertion `Texture at colorAttachment[0] has usage (0x01) which doesn't specify MTLTextureUsageRenderTarget (0x04)'
Same code worked perfect with Xcode 8.3.3 iOS 10.
How to fix crash in Xcode 9 ?
UPDATES_SOLUTION :
Solution is simple, just goto Xcode->Product->Scheme->Edit Scheme, disable Metal API Validation. This fix crash.
The MTLTextureUsageRenderTarget in the error shows that this is a Apple's Metal issue.
Unity 4.6.9 is extremely old to work on iOS 11 and is no longer patched to fix issues on platforms like iOS. You should also worry about your latest app being rejected from the app store due to IPv6 compatibly issues.
You have three options:
1.Disable Metal API Validation in Xcode
2.Use OpenGLES instead of Metal.
First of all, disable Auto Graphics API then change iOS Graphics API to OpenGLES2 or OpenGLES3 in Unity's Player Settings.
3.Update to Unity to the latest version of Unity if #1 and #2 fail. If you update Unity and the problem is still there then you can file for bug report from the Editor. I expect this issue to be gone if you update Unity.

Game Center displayed no data on iOS 10

Context
I have 2 games available on AppStore. On a device running iOS 9, Game Center View displayed data for LeaderBoards, Achievements and Challenges.
On another device running iOS 10 no data are displayed.
These apps are on AppStore for some times with no known problems. Going to iOS 10 lead to the loss of Game Center data.
Code
Game Center view is displayed using GKGameCenterViewController.
Game Center
I've checked Game Center data on iTunes Connect: everything is OK. It's also OK using Game Center app for Mac or Game Center app on iOS device running iOS 9.
Tests
I ran test on a device running iOS 10, plugged to Xcode: everything was fine, with the same Game Center account.
Of course during all this tests this the same Game Center credentials is used.
iOS 9 — Simulator
iOS 9 — Device
iOS 10 — Simulator
iOS 10 — Device
"Aucune donnée disponible" is the french translation for "No data available".
Given a single device that previously worked on IOS9 and now isn't working on IOS10 even though other devices with the same ID work fine, we have to consider both server-side and client-side issues:
Server-side issue: We can't rule out server-side issues, especially given the other server-side issues that appear with GameCenter. In the past, for reasons that have never been explained by Apple, simply changing the default leaderboard has solved all sorts of game-center-won't-play-nice issues. Creating a new leaderboard and making it the default, or simply changing which leaderboard is default, seems to be sufficient. However, from my own experience, this works when the problem affects all users, not just 1 device.
Client-side issues: Since you're seeing different behaviors on different devices using a single game center ID, I believe it's more likely to be a client-side issue stemming from the upgrade process. I'd try two things.
First, log out of game center on the affected device, then log back in with a different game center ID. Does the problem still occur?
Second, log out of all three iTunes, iCloud and gameCenter (3 separate places in settings). Reboot the device, then log back in.
Admittedly, all of these are grasping at straws, but these items have corrected weird game center behaviors for me in the past.

Game center authenticate on simulator, but nor actual device

I am attempting to add game center to my application and all goes well for the simulator, but when I run it on the device, it always says game is not recognized by game center. I have attempted to log out of game center than back in hoping it places me in "sand box" but it apparently does not.
If it matters, my devices are running iOS 5 beta 7. Any ideas why okay on simulator and not device? Thanks in advance.
Geo...
So it must have been something to do with running beta and something got "hung", because I restarted the iPad and all is well. Although I did have to make sure I was logged out of Game Center on the device and then log in via my app.
Geo...

iOS Development: After updating my iPhone 4 to iOS 4.3 Beta 3, my app says "This game is not recognized by Game Center"

I've been building an iPhone game for the last couple months using XCode 3.2.5 and iOS 4.2 and I'm about to submit it to the App Store. Before I do that, however, I wanted to test it against iOS 4.3 Beta 3, so I downloaded the latest beta SDK, installed it in a separate location, and updated the device to iOS 4.3 Beta 3. Now, when I run the game and it attempts to authenticate the local player in Game Center, it pops up a box saying "This game is not recognized by Game Center". Why?
I tried logging out of Game Center though the Game Center app and restarting my app, but I was already logged out, so the problem doesn't appear to be the result of trying to use a non-sandboxed account. Also, I noticed that it runs fine in the 4.3 Beta 3 Simulator. I only get this error on the updated device. Any ideas?
Thanks so much for you wisdom!
Are you code signing with the provisioning profile specific to your app or with a wildcard provisioning profile?
As far as I know, signing with a wildcard profile isn't allowed for accessing Game Center.
In the Game Center app, make sure you're not connected with an account in the production environment. If you have doubt, log out and start your application.