android - Flutter 检索 ro.product.cpu.abi 的设备属性时出错

Question

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)

Answer 1

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。