Game Center log in failed

Hello there, Smartapple21.

The following Knowledge Base article offers up some great pointers and references for troubleshooting login issue for Game Center:

Using Game Center

http://support.apple.com/kb/ht4314

Particularly:

If you are having difficulty logging in to Game Center or staying connected

1. Verify that you are connected to the Internet.
2. If you are unable to create or sign in to your Game Center account from within a game, try creating or signing in to your account using the Game Center app.
3. Try signing out of your Game Center account, then sign back in. If you can't sign in to your Game Center account with an Apple ID, try resetting your password or using another email address. To manage your Apple ID account, go to My Apple ID.
4. When using a Wi-Fi connection, verify that your Wi-Fi router is configured for Game Center.

Thanks for reaching out to Apple Support Communities.

Cheers,

Pedro.

我找到了最终的解决方案。

我看到有人通过修改系统语言解决了这个问题，因此我意识到原因可能和语言有关。

后来我发现在/var/mobile/Library/GameKit/Data里的文件夹是以语言分类的。

其中只有我曾经尝试设置过的语言，所以我猜测它们是在第一次登陆Game Center时自动下载用于缓存数据的。

我认为导致问题的原因是无效的缓存数据。cocoa无法解析必要的缓存数据而抛出异常信息。

只需将/var/mobile/Library/GameKit/Data重命名为/var/mobile/Library/GameKit/Data1或者直接删除该文 件夹。

然后你就可以成功登录Game Center了！

Firstly, I wanna say that I'm Chinese. I'm not very good at English.

I have found the solution finally.

I saw someone solve the problem by changing the language so I realized that the cause may be related with the language.

And then I found the folders in /var/mobile/Library/GameKit/Data are catagrated by language.

They are only the languages I have tried to set so I guess they may be downloaded automatically to cache data from the Game Center server at the first time when we logged in the Game Center. I thought the cause leading to the problem was the invalid cache data. The cocoa threw the exception information because it cannot parse the cache data required.

Just RENAME /var/mobile/Library/GameKit/Data to /var/mobile/Library/GameKit/Data1 or DELETE it directly.

And then you will log in the Game Center successfully!

If someone can get what I meant, please help me to rewrite the solution in native English in order to help more people. Thank you!