Xcode8.0 Beta 6-无法从设备读取 [英] Xcode8.0 Beta 6 - unable to read from device

问题描述

我刚刚将Xcode 8.0从Beta 4升级到Beta 6，并且在尝试在我的设备上构建应用程序时，收到此消息无法从设备读取".任何想法可能是什么问题?

I just upgraded Xcode 8.0 from beta 4 to beta 6 and I am getting this message " unable to read from device " when trying to build the app on my device. Any ideas what the problem could be?

推荐答案

当缺少符号时，这是错误.通常，当您的设备具有比Xcode更高的版本(例如iOS 10 vs Xcode 7.3)时，会出现此错误.在这种情况下，Xcode 8 beta 6无法从设备复制iOS 10 beta 6符号.

This is the error when the symbols are missing. Usually you get this error when your device has higher version than the Xcode such as iOS 10 vs Xcode 7.3 In this case Xcode 8 beta 6 failed to copy iOS 10 beta 6 symbols from the device.

1. 在Xcode中打开设备
2. 选择您的设备.它应该有意外的错误消息
3. 删除"〜/Library/Developer/Xcode/iOS DeviceSupport "目录
4. 拔出设备
5. 重新启动您的设备
6. 重新插入您的设备
7. Xcode应该立即开始复制符号文件

1. Open Devices in Xcode
2. Select your device. It should have an unexpected error message
3. Delete "~/Library/Developer/Xcode/iOS DeviceSupport" directory
4. Unplug your device
5. Restart your device
6. Plug back your device
7. Xcode should start copying the symbol files immediately

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