【Xcode】报错：iPhoneisnotavailable.Pleasereconnectthedevice

• macOS Version 10.15.7 (Build 19H2)
• Xcode 11.7 (16142)

其实这个问题&＃xff0c;每年升级 Xcode 都会遇到&＃xff0c;
每次都要 baidu google stackOverflow 一下&＃xff0c;
这次就记录一下解决思路吧。


问题&＃xff1a;

Xcode 最近几个月运行的设备是 iOS 13.7&＃xff0c;
今天换了个设备&＃xff1a; iOS 13.6.1
build时报错&＃xff1a;

iPhone is not available.
Please reconnect the device


查看 window - devices and simulators

错误信息如下&＃xff1a;

To run on this device, please update to a version of Xcode that supports iOS 13.6.1.
You can download Xcode from the Mac App Store or the Apple Developer website.


解决思路&＃xff1a;

1、Xcode 和 iOS 系统对应&＃xff1a;

Xcode 12.2 → iOS 14.2
Xcode 12.1 → iOS 14.1
Xcode 12 → iOS 14
Xcode 11.7 → iOS 13.7
Xcode 11.6 → iOS 13.6
Xcode 11.5 → iOS 13.5
Xcode 11.4 → iOS 13.4


当前 Xcode 是 11.7 &＃xff0c;支持 iOS 13.7系统。
&＃xff08;理论上&＃xff0c;因为没有升级到 Xcode 12&＃xff0c;应该只有 iOS 14 不支持运行叭&＃xff09;

2、查看本地 iPhoneOSDeviceSupport

Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/


原来、本地竟然是、没有 13.6 的吗&＃xff1f;
找到原因了。

3、下载 13.6 DeviceSupport 放到本地

操作&＃xff1a;
&＃xff08;1&＃xff09;关闭 Xcode
&＃xff08;2&＃xff09;下载 iPhoneOSDeviceSupport 13.6的部分
&＃xff08;3&＃xff09;解压后&＃xff0c;放到 DeviceSupport 路径下

Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/


&＃xff08;4&＃xff09;重新打开 Xcode

相关讨论&＃xff1a;
https://stackoverflow.com/questions/61863826/iphone-is-not-available-please-reconnect-the-device

4、但是&＃xff0c;再次 build 又报错

iphone 11Pro Max is busy: Copying cache files from device


那…重启一下吧
Xcode 和 设备都重启一下。

设备重启命令&＃xff1a;

➜ /Users
> /usr/local/bin/idevicediagnostics restart
Restarting device.


解决&＃xff0c;重启大法好&＃xff01;yeah