iOS应用程序获得一个；设备身份验证错误“；扫描Chromecast设备时

我正在为Chromecast开发iOS sender应用程序。我安装了两台Chromecast设备，能够检测并连接到这两台设备，直到我切换到另一台测试iPhone，现在当我尝试扫描Chromecast设备时，deviceDidComeOnline消息从未发送

我能够通过GoogleCast框架的2.5.1版示例应用程序重现这个问题。以下是示例应用程序未能检测到Chromecast时的控制台输出：

2015-01-17 07:52:37.314 CastVideos[411:33216] Start Scan
2015-01-17 07:52:37.315 CastVideos[411:33216] -[GCKDeviceScanner startNetServiceScan]  startNetServiceScan
2015-01-17 07:52:37.341 CastVideos[411:33216] -[GCKNetworkReachability updateStatus]  updateStatus
2015-01-17 07:52:37.345 CastVideos[411:33216] -[GCKDeviceScanner networkReachabilityStatusDidChange:]  networkReachabilityStatusDidChange:1
2015-01-17 07:52:37.345 CastVideos[411:33216] -[GCKDeviceScanner purgeAllOnlineDevices]  purgeAllOnlineDevices
2015-01-17 07:52:37.489 CastVideos[411:33216] -[GCKDeviceScanner startFilteringDevice:]  starting filter for device: <0x1780b0b60:GCKDevice> ChromecastDev2 (be1be9dcbaa4cb82678b977203c3ef91)
2015-01-17 07:52:37.494 CastVideos[411:33216] -[GCKDeviceScanner startFilteringDevice:]  starting filter for device: <0x1700a38a0:GCKDevice> ChromecastDev (3df5a88f22a974661a8a3556acafdd2f)
2015-01-17 07:52:37.629 CastVideos[411:33216] -[GCKCastSecureSocket continueHandshake]  Peer trust certificate invalid; disconnecting
2015-01-17 07:52:37.630 CastVideos[411:33216] -[GCKCastSecureSocket doTeardownWithErrorCode:]  doTeardownWithErrorCode:3
2015-01-17 07:52:37.630 CastVideos[411:33216] __42-[GCKCastSecureSocket initWithBufferSize:]_block_invoke18  Error reading from SSL buffer to stream buffer, status: -50
2015-01-17 07:52:37.630 CastVideos[411:33216] -[GCKCastSecureSocket doTeardownWithErrorCode:]  doTeardownWithErrorCode:1
2015-01-17 07:52:37.631 CastVideos[411:33216] -[GCKDeviceManager castSocket:didDisconnectWithError:]  castSocket:didDisconnectWithError:Error Domain=com.google.GCKError Code=3 "Device authentication failure" UserInfo=0x170272180 {NSLocalizedDescription=Device authentication failure}
2015-01-17 07:52:37.631 CastVideos[411:33216] -[GCKDeviceManager handleConnectionError:]  handleConnectionError error=Error Domain=com.google.GCKError Code=3 "Device authentication failure" UserInfo=0x170272180 {NSLocalizedDescription=Device authentication failure}, _appConnectionState=0
2015-01-17 07:52:37.631 CastVideos[411:33216] -[GCKDeviceManager handleConnectionError:]  giving up on reconnect; _pausedAppID=(null), _wasConnected=0
2015-01-17 07:52:37.632 CastVideos[411:33216] -[GCKDeviceManager unregisterForAppStateNotifications]  unregisterForAppStateNotifications
2015-01-17 07:52:37.634 CastVideos[411:33216] -[GCKDeviceManager disconnectWithError:isExplicit:]  disconnectWithError:(null)
2015-01-17 07:52:37.634 CastVideos[411:33216] -[GCKDeviceScanner filteringFailedForDevice:withError:]  Filter failed for device <0x1700a38a0:GCKDevice> ChromecastDev (3df5a88f22a974661a8a3556acafdd2f) with error Error Domain=com.google.GCKError Code=3 "Device authentication failure" UserInfo=0x170272180 {NSLocalizedDescription=Device authentication failure}
2015-01-17 07:52:37.634 CastVideos[411:33216] -[GCKDeviceScanner filteringFailedForDevice:withError:]  Marking device <0x1700a38a0:GCKDevice> ChromecastDev (3df5a88f22a974661a8a3556acafdd2f) invalid
2015-01-17 07:52:37.635 CastVideos[411:33216] -[GCKDeviceManager unregisterForAppStateNotifications]  unregisterForAppStateNotifications
2015-01-17 07:52:37.635 CastVideos[411:33216] -[GCKDeviceManager disconnectWithError:isExplicit:]  disconnectWithError:(null)
2015-01-17 07:52:37.635 CastVideos[411:33216] -[GCKCastSecureSocket disconnectWithError:]  disconnect

2015-01-17 07:52:37.314视频[411:33216]开始扫描
2015-01-17 07:52:37.315视频[411:33216]-[GCKDeviceScanner startNetServiceScan]startNetServiceScan
2015-01-17 07:52:37.341视频[411:33216]-[GCKNetworkReachability updateStatus]updateStatus
2015-01-17 07:52:37.345卡斯特视频[411:33216]-[GCKDeviceScanner networkReachabilityStatusDidChange:]networkReachabilityStatusDidChange:1
2015-01-17 07:52:37.345卡斯特视频[411:33216]-[GCKDeviceScanner PurgeAllonline设备]PurgeAllonline设备
2015-01-17 07:52:37.489 CastVideos[411:33216]-[GCKDeviceScanner startFilteringDevice:]启动设备的过滤器：ChromecastDev2（be1be9dcbaa4cb82678b977203c3ef91）
2015-01-17 07:52:37.494 CastVideos[411:33216]-[GCKDeviceScanner startFilteringDevice:]启动设备过滤器：ChromecastDev（3df5a88f22a974661a8a3556acafdd2f）
2015-01-17 07:52:37.629 CastVideos[411:33216]-[GCKCastSecureSocket continueHandshake]对等信任证书无效；断开
2015-01-17 07:52:37.630视频[411:33216]-[GCKCastSecureSocket doTeardownWithErrorCode:]doTeardownWithErrorCode:3
2015-01-17 07:52:37.630 CastVideos[411:33216]uu42-[GCKCastSecureSocket initWithBufferSize:][U block_invoke18从SSL缓冲区读取到流缓冲区时出错，状态：-50
2015-01-17 07:52:37.630视频[411:33216]-[GCKCastSecureSocket doTeardownWithErrorCode:]doTeardownWithErrorCode:1
2015-01-17 07:52:37.631 CastVideos[411:33216]-[GCKDeviceManager castSocket:didDisconnectWithError:]castSocket:didDisconnectWithError:Error Domain=com.google.GCKError Code=3“设备身份验证失败”UserInfo=0x170272180{NSLocalizedDescription=设备身份验证失败}
2015-01-17 07:52:37.631 CastVideos[411:33216]-[GCKDeviceManager handleConnectionError:]handleConnectionError=error Domain=com.google.GCKError Code=3“设备身份验证失败”UserInfo=0x170272180{NSLocalizedDescription=Device authentication failure}，_appConnectionState=0
2015-01-17 07:52:37.631视频[411:33216]-[GCKDeviceManager handleConnectionError:]放弃重新连接_pausedAppID=（null），\u wasConnected=0
2015-01-17 07:52:37.632卡斯特视频[411:33216]-[GCKDeviceManager注销AppStateNotifications]注销AppStateNotifications
2015-01-17 07:52:37.634视频[411:33216]-[GCKDeviceManager disconnectWithError:isExplicit:]disconnectWithError:（空）
2015-01-17 07:52:37.634 CastVideos[411:33216]-[GCKDeviceScanner FilteringFailedfordice:withError:]设备ChromecastDev（3DF5A88F22A974661A8A3556AFDD2F）的过滤器失败，错误域=com.google.gckeror代码=3“设备身份验证失败”用户信息=0x170272180{本地化描述=设备身份验证失败}
2015-01-17 07:52:37.634 CastVideos[411:33216]-[GCKDeviceScanner filteringFailedForDevice:withError:]标记设备ChromecastDev（3DF5A88F22A974661A8A3556AFDD2F）无效
2015-01-17 07:52:37.635视频[411:33216]-[GCKDeviceManager注销AppStateNotifications]注销AppStateNotifications
2015-01-17 07:52:37.635视频[411:33216]-[GCKDeviceManager disconnectWithError:isExplicit:]disconnectWithError:（空）
2015-01-17 07:52:37.635卡斯特视频[411:33216]-[GCKCastSecureSocket disconnect WitherRor:]断开

这发生在运行iOS 8.0的iPhone 6+上。当我在此手机上打开其他与Chromecast兼容的应用程序（Chromecast、YouTube）时，两个Chromecast设备都被成功检测到。只是我在Xcode上运行的应用程序，就在这个特定的测试手机上，似乎有这个问题

我在其他几个测试设备上尝试了相同的示例应用程序，看看它是否与设备/操作系统有关。在以下iPhone/iPad上检测到两款Chromecast设备均未出现问题：

• iOS 8.1.2上的iPhone 6
• iOS 8.1.2上的iPhone 5
• iOS 8.0.2上的iPhone 6+
• iOS 8.0上的iPhone 5
• iOS 8.0上的iPad Air

知道这是什么原因吗？

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提前谢谢。

显然我使用的iPhone有证书问题

转到设置->常规->重置->重置所有设置修复了问题。

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起初我尝试重置网络设置，但似乎没有帮助。不确定两者的结合是否是原因。

证书问题可能是由于手机上的无效日期造成的。检查日期时间是否正确，因为这可能会导致证书颁发，然后是Chromecast颁发

当设备上的时间和时间不正确时，我会遇到这种情况

当我更正日期时，它按预期工作