我是 Flutter 的新手,并且已经成功安装并在一台机器上运行,但是在使用这台机器时我遇到了一些问题。它是 android studio、flutter 和 gradle 的全新安装。机器正在运行更新的 Windows 10。
Flutter Doctor 语句在检索设备属性时返回错误。
C:\Development\FlutterApps\first_app>flutter doctor -v
[√] Flutter (Channel stable, v1.0.0, on Microsoft Windows [Version 10.0.17134.523], locale en-US)
• Flutter version 1.0.0 at C:\Development\Flutter
• Framework revision 5391447fae (8 weeks ago), 2018-11-29 19:41:26 -0800
• Engine revision 7375a0f414
• Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)
\Error retrieving device properties for ro.product.cpu.abi:
[
√] Android toolchain - develop for Android devices (Android SDK 28.0.3)
• Android SDK at C:\Development\Android
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.3
• ANDROID_HOME = C:\Development\Android
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
• All Android licenses accepted.
[√] Android Studio (version 3.3)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 31.3.3
• Dart plugin version 182.5124
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
[√] Connected device (1 available)
• Android SDK built for x86 • emulator-5554 • android-arm • Android null (API null)
• No issues found!
当尝试在模拟的 android 实例或真实设备上运行 flutter 应用时,我得到了同样的错误:
Error retrieving device properties for ro.product.cpu.abi:
Launching lib\main.dart on Android SDK built for x86 in debug mode...
Initializing gradle...
Resolving dependencies...
--------- beginning of system
01-22 22:51:04.010 E/BatteryStatsService( 1698): modem info is invalid: ModemActivityInfo{ mTimestamp=0 mSleepTimeMs=0 mIdleTimeMs=0 mTxTimeMs[]=[0, 0, 0, 0, 0] mRxTimeMs=0 mEnergyUsed=0}
Unhandled exception:
Exit code -1073740940 from: C:/Development/Android\platform-tools\adb -s emulator-5554 shell -x logcat -v time -t 1
#0 _runWithLoggingSync (package:flutter_tools/src/base/process.dart:353:7)
#1 runCheckedSync (package:flutter_tools/src/base/process.dart:284:10)
#2 AndroidDevice.lastLogcatTimestamp (package:flutter_tools/src/android/android_device.dart:504:27)
#3 _AdbLogReader._start (package:flutter_tools/src/android/android_device.dart:678:41)
#4 _runGuarded (dart:async/stream_controller.dart:804:24)
#5 _BroadcastStreamController._subscribe (dart:async/broadcast_stream_controller.dart:217:7)
#6 _ControllerStream._createSubscription (dart:async/stream_controller.dart:817:19)
#7 _StreamImpl.listen (dart:async/stream_impl.dart:472:9)
#8 FlutterDevice.startEchoingDeviceLog (package:flutter_tools/src/resident_runner.dart:242:71)
#9 FlutterDevice.runHot (package:flutter_tools/src/resident_runner.dart:285:5)
<asynchronous suspension>
#10 HotRunner.run (package:flutter_tools/src/run_hot.dart:272:39)
<asynchronous suspension>
#11 AppDomain.startApp.<anonymous closure> (package:flutter_tools/src/commands/daemon.dart:387:62)
#12 AppDomain.launch.<anonymous closure> (package:flutter_tools/src/commands/daemon.dart:438:26)
<asynchronous suspension>
#13 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:142:29)
<asynchronous suspension>
#14 _rootRun (dart:async/zone.dart:1124:13)
#15 _CustomZone.run (dart:async/zone.dart:1021:19)
#16 _runZoned (dart:async/zone.dart:1516:10)
#17 runZoned (dart:async/zone.dart:1463:12)
#18 AppContext.run (package:flutter_tools/src/base/context.dart:141:18)
<asynchronous suspension>
#19 AppInstance._runInZone (package:flutter_tools/src/commands/daemon.dart:820:20)
#20 AppDomain.launch (package:flutter_tools/src/commands/daemon.dart:436:15)
<asynchronous suspension>
#21 AppDomain.startApp (package:flutter_tools/src/commands/daemon.dart:384:12)
<asynchronous suspension>
#22 RunCommand.runCommand (package:flutter_tools/src/commands/run.dart:289:38)
<asynchronous suspension>
#23 FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:401:18)
#24 _asyncThenWrapperHelper.<anonymous closure> (dart:async/runtime/libasync_patch.dart:77:64)
#25 _rootRunUnary (dart:async/zone.dart:1132:38)
#26 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#27 _FutureListener.handleValue (dart:async/future_impl.dart:129:18)
#28 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:642:45)
#29 Future._propagateToListeners (dart:async/future_impl.dart:671:32)
#30 Future._complete (dart:async/future_impl.dart:476:7)
#31 _SyncCompleter.complete (dart:async/future_impl.dart:51:12)
#32 _AsyncAwaitCompleter.complete (dart:async/runtime/libasync_patch.dart:28:18)
#33 _completeOnAsyncReturn (dart:async/runtime/libasync_patch.dart:295:13)
#34 RunCommand.usageValues (package:flutter_tools/src/commands/run.dart)
#35 _asyncThenWrapperHelper.<anonymous closure> (dart:async/runtime/libasync_patch.dart:77:64)
#36 _rootRunUnary (dart:async/zone.dart:1132:38)
#37 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#38 _FutureListener.handleValue (dart:async/future_impl.dart:129:18)
#39 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:642:45)
#40 Future._propagateToListeners (dart:async/future_impl.dart:671:32)
#41 Future._complete (dart:async/future_impl.dart:476:7)
#42 _SyncCompleter.complete (dart:async/future_impl.dart:51:12)
#43 _AsyncAwaitCompleter.complete.<anonymous closure> (dart:async/runtime/libasync_patch.dart:33:20)
#44 _rootRun (dart:async/zone.dart:1124:13)
#45 _CustomZone.run (dart:async/zone.dart:1021:19)
#46 _CustomZone.bindCallback.<anonymous closure> (dart:async/zone.dart:947:23)
#47 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#48 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#49 _runPendingImmediateCallback (dart:isolate/runtime/libisolate_patch.dart:115:13)
#50 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:172:5)
最佳答案
另一个可能的错误是,对于物理设备,您需要启用文件传输模式(不充电)以及启用调试。
https://stackoverflow.com/questions/54320270/
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