我正在使用Windows 10和MacOS 10.13.6
同样的问题开始在两台机器上发生，我不认为我做了任何引发问题的改变。它只是在12小时内在Win 10和MacOS上自发地破坏了。
运行Android Studio时，设备下拉菜单不会显示插入Android手机，然后设备下拉消失。这发生在两个平台上。
flutter运行也失败了“adb没有响应”我使用任务管理器，adb kill-server，taskkill / F / IM adb *，killall adb杀死了adb并用adb设备重启了它。 adb devices输出看起来很好：
$ adb devices
List of devices attached
5VT7N15A29001392 device
来自Windows 10的颤抖医生：
$ flutter doctor -v
[v] Flutter (Channel beta, v0.8.2, on Microsoft Windows [Version 10.0.17134.285], locale en-US)
• Flutter version 0.8.2 at C:\src\flutter
• Framework revision 5ab9e70727 (4 weeks ago), 2018-09-07 12:33:05 -0700
• Engine revision 58a1894a1c
• Dart version 2.1.0-dev.3.1.flutter-760a9690c2
[v] Android toolchain - develop for Android devices (Android SDK 27.0.3)
• Android SDK at C:\Users\Susannah\AppData\Local\Android\sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-P, build-tools 27.0.3
• Java binary at: C:\Program Files\Android\Android Studo_3_2_beta2\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b04)
• All Android licenses accepted.
[v] Android Studio (version 3.2)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 29.0.2
• Dart plugin version 181.5616
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
[v] Android Studio (version 3.2)
• Android Studio at C:\Program Files\Android\Android Studo_3_2_beta2
• Flutter plugin version 29.0.2
• Dart plugin version 181.5616
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b04)
[v] IntelliJ IDEA Community Edition (version 2018.2)
• IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2018.2.3
• Flutter plugin version 29.0.4
• Dart plugin version 182.4323.44
adb not responding
#0 throwToolExit (package:flutter_tools/src/base/common.dart:26:3)
#1 AndroidDevice._getProperty (package:flutter_tools/src/android/android_device.dart:98:9)
<asynchronous suspension>
#2 AndroidDevice.targetPlatform (package:flutter_tools/src/android/android_device.dart:129:21)
<asynchronous suspension>
#3 Device.descriptions (package:flutter_tools/src/device.dart:303:58)
<asynchronous suspension>
#4 DeviceValidator.validate (package:flutter_tools/src/doctor.dart:657:31)
<asynchronous suspension>
#5 Doctor.startValidatorTasks (package:flutter_tools/src/doctor.dart:105:56)
#6 Doctor.diagnose (package:flutter_tools/src/doctor.dart:183:42)
#7 _AsyncAwaitCompleter.start (dart:async/runtime/libasync_patch.dart:49:6)
#8 Doctor.diagnose (package:flutter_tools/src/doctor.dart:173:24)
#9 DoctorCommand.runCommand (package:flutter_tools/src/commands/doctor.dart:29:39)
#10 _AsyncAwaitCompleter.start (dart:async/runtime/libasync_patch.dart:49:6)
#11 DoctorCommand.runCommand (package:flutter_tools/src/commands/doctor.dart:28:42)
#12 FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:372:18)
#13 _asyncThenWrapperHelper.<anonymous closure> (dart:async/runtime/libasync_patch.dart:77:64)
#14 _rootRunUnary (dart:async/zone.dart:1132:38)
#15 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#16 _FutureListener.handleValue (dart:async/future_impl.dart:129:18)
#17 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:642:45)
#18 Future._propagateToListeners (dart:async/future_impl.dart:671:32)
#19 Future._complete (dart:async/future_impl.dart:476:7)
#20 _SyncCompleter.complete (dart:async/future_impl.dart:51:12)
#21 _AsyncAwaitCompleter.complete.<anonymous closure> (dart:async/runtime/libasync_patch.dart:33:20)
#22 _rootRun (dart:async/zone.dart:1124:13)
#23 _CustomZone.run (dart:async/zone.dart:1021:19)
#24 _CustomZone.bindCallback.<anonymous closure> (dart:async/zone.dart:947:23)
#25 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#26 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#27 _runPendingImmediateCallback (dart:isolate/runtime/libisolate_patch.dart:115:13)
#28 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:172:5)
在Mac上扑动医生：
flutter doctor -v
[✓] Flutter (Channel beta, v0.8.2, on Mac OS X 10.13.6 17G65, locale en-US)
• Flutter version 0.8.2 at /Users/susannahmedley/Documents/development/flutter
• Framework revision 5ab9e70727 (4 weeks ago), 2018-09-07 12:33:05 -0700
• Engine revision 58a1894a1c
• Dart version 2.1.0-dev.3.1.flutter-760a9690c2
[✓] Android toolchain - develop for Android devices (Android SDK 28.0.0)
• Android SDK at /Users/susannahmedley/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.0
• ANDROID_HOME = /Users/susannahmedley/Library/Android/sdk
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
• All Android licenses accepted.
[✓] iOS toolchain - develop for iOS devices (Xcode 10.0)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 10.0, Build version 10A255
• ios-deploy 1.9.2
• CocoaPods version 1.5.3
[✓] Android Studio (version 3.2)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 28.0.2
• Dart plugin version 181.5616
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
[✓] IntelliJ IDEA Community Edition (version 2018.2.3)
• IntelliJ at /Applications/IntelliJ IDEA CE.app
• Flutter plugin version 28.0.4
• Dart plugin version 182.4323.44
[!] Connected devices
! No devices available
! Doctor found issues in 1 category.
即使设备已连接。
更新：Mac适用于Android模拟器。
令人费解的是，经过几次重新启动后，它再次开始工作。有人知道是什么原因引起的吗？