在我更新手机软件版本和 Xcode 之前，我的应用程序中的 Facebook 集成工作正常。现在，每当我运行该应用程序时，都会收到以下错误消息。有人有想法么？
2012-05-30 00:23:49.680 [417:707] FACEBOOK FAILED!
2012-05-30 00:23:49.684 [417:707] REQUEST: Error Domain=facebookErrDomain Code=10000 "The operation couldn’t be completed. (facebookErrDomain error 10000.)" UserInfo=0x2cbb30 {error=<CFBasicHash 0x2cb220 [0x3f9e2650]>{type = mutable dict, count = 3,
entries =>
2 : <CFString 0x2cb140 [0x3f9e2650]>{contents = "type"} = <CFString 0x2cb680 [0x3f9e2650]>{contents = "OAuthException"}
3 : <CFString 0x2cb620 [0x3f9e2650]>{contents = "message"} = <CFString 0x2cb580 [0x3f9e2650]>{contents = "An active access token must be used to query information about the current user."}
6 : <CFString 0x2cba30 [0x3f9e2650]>{contents = "code"} = 2500
}