flutter doctor : idevice_id返回错误

Question

我有一个question.When，我重新启动了我的电脑，“颤动医生”是可以的。我可以成功地运行我的应用程序。但是一旦我运行我的应用程序，命令"flutter doctor“就是错误的。如果我重新启动我的电脑，“颤动医生”就会恢复正常。有没有人遇到了同样的问题，如何解决异常: idevice_id返回错误：

#0      IMobileDevice.getInfoForDevice (package:flutter_tools/src/ios/mac.dart:122:9)
#1      IOSDevice.getAttachedDevices (package:flutter_tools/src/ios/devices.dart:152:53)
#2      IOSDevices.pollingGetDevices (package:flutter_tools/src/ios/devices.dart:112:57)
#3      PollingDeviceDiscovery.devices (package:flutter_tools/src/device.dart:163:52)
#4      DeviceManager.getAllConnectedDevices (package:flutter_tools/src/device.dart:91:46)
#5      DeviceValidator.validate (package:flutter_tools/src/doctor.dart:607:54)
#6      Doctor.startValidatorTasks (package:flutter_tools/src/doctor.dart:105:52)
#7      Doctor.diagnose (package:flutter_tools/src/doctor.dart:162:41)
#8      _AsyncAwaitCompleter.start (dart:async/runtime/libasync_patch.dart:49:6)
#9      Doctor.diagnose (package:flutter_tools/src/doctor.dart:152:24)
#10     DoctorCommand.runCommand (package:flutter_tools/src/commands/doctor.dart:29:39)
#11     _AsyncAwaitCompleter.start (dart:async/runtime/libasync_patch.dart:49:6)
#12     DoctorCommand.runCommand (package:flutter_tools/src/commands/doctor.dart:28:42)
#13     FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:372:18)
#14     _asyncThenWrapperHelper.<anonymous closure> (dart:async/runtime/libasync_patch.dart:77:64)
#15     _rootRunUnary (dart:async/zone.dart:1132:38)
#16     _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#17     _FutureListener.handleValue (dart:async/future_impl.dart:129:18)
#18     Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:642:45)
#19     Future._propagateToListeners (dart:async/future_impl.dart:671:32)
#20     Future._complete (dart:async/future_impl.dart:476:7)
#21     _SyncCompleter.complete (dart:async/future_impl.dart:51:12)
#22     _AsyncAwaitCompleter.complete.<anonymous closure> (dart:async/runtime/libasync_patch.dart:33:20)
#23     _rootRun (dart:async/zone.dart:1124:13)
#24     _CustomZone.run (dart:async/zone.dart:1021:19)
#25     _CustomZone.bindCallback.<anonymous closure> (dart:async/zone.dart:947:23)
#26     _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#27     _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#28     _runPendingImmediateCallback (dart:isolate/runtime/libisolate_patch.dart:115:13)
#29     _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:172:5)"

Answer 1

我可以通过取消设备配对，然后运行

brew update
brew uninstall --ignore-dependencies libimobiledevice
brew uninstall --ignore-dependencies usbmuxd
brew install --HEAD usbmuxd
brew unlink usbmuxd
brew link usbmuxd
brew install --HEAD libimobiledevice
brew install ideviceinstaller

Answer 2

这是一个will be fixed soon的upstream bug in libusbmuxd。还有一个正在考虑包含在Flutter本身中的proposed workaround。

与此同时，GitHub用户@mattijsf mentioned提供了几种解决此问题的方法：

打开Xcode > Unpair device.

• If > Devices & Simulators >右键单击设备>Unpair device.

• If您正在使用的物理Window设备如果您不想从Xcode取消配对，则必须使用USB线将其连接或禁用该设备上的Wi-Fi。
• 将取消与Xcode配对的任何不需要的iOS设备，然后:打开Xcode>Window>Devices & Simulators>右键单击设备>USB线。

# Detaching USB & Disabling WIFI on device (wait 10 - 20 seconds)

$ idevice_id -l
[empty]

# Enabling WIFI on device (wait 10 - 20 seconds)

$ idevice_id -l
4a8e882c613--37cc1ac48
$ ideviceinfo -u 4a8e882c613-37cc1ac48
No device found with udid 4a8e882c613--37cc1ac48, is it plugged in?

# Attaching device with USB

$ idevice_id -l
4a8e882c613--37cc1ac48
4a8e882c613--37cc1ac48
$ ideviceinfo -u 4a8e882c613--37cc1ac48
ActivationState: Activated
....etc

# Now it works