下午好，
我尝试在iOS上运行Flutter项目，以前在Android上成功运行过。但是，我得到一个错误：
"x86_64" is not an allowed value for option "ios-arch". Run 'flutter -h' (or 'flutter-h') for available flutter commands and options. Failed to build /Users/user123/Downloads/my_app. Command /bin/sh failed with exit code 255
我尝试了针对各种错误“命令/ bin / sh失败，退出代码为XXX”的各种解决方案。但是，他们都没有帮助。
另外，我在GitHub上检查了解决方案：https : //github.com/flutter/flutter/issues/9814。同时，我还不清楚如何将它们实现到iOS项目中。
感谢您的支持。
此致Maryna
更新：这些是命令的结果：
$ flutter run --verbose
[ +53 ms] executing: [/Users/user143726/Downloads/flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[ +60 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[ ] origin/beta
[ ] executing: [/Users/user143726/Downloads/flutter/] git rev-parse --abbrev-ref HEAD
[ +10 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ ] beta
[ ] executing: [/Users/user143726/Downloads/flutter/] git ls-remote --get-url origin
[ +8 ms] Exit code 0 from: git ls-remote --get-url origin
[ ] https://github.com/flutter/flutter.git
[ ] executing: [/Users/user143726/Downloads/flutter/] git log -n 1 --pretty=format:%H
[ +12 ms] Exit code 0 from: git log -n 1 --pretty=format:%H
[ ] 5ab9e70727d858def3a586db7fb98ee580352957
[ ] executing: [/Users/user143726/Downloads/flutter/] git log -n 1 --pretty=format:%ar
[ +13 ms] Exit code 0 from: git log -n 1 --pretty=format:%ar
[ ] 3 weeks ago
[ +1 ms] executing: [/Users/user143726/Downloads/flutter/] git describe --match v*.*.* --first-parent --long --tags
[ +14 ms] Exit code 0 from: git describe --match v*.*.* --first-parent --long --tags
[ ] v0.8.2-0-g5ab9e7072
[ +508 ms] executing: /Users/user143726/Library/Android/sdk/platform-tools/adb devices -l
[ +32 ms] Exit code 0 from: /Users/user143726/Library/Android/sdk/platform-tools/adb devices -l
[ ] List of devices attached
[ +8 ms] executing: idevice_id -h
[ +98 ms] /usr/bin/xcrun simctl list --json devices
[ +449 ms] No connected devices.
[ ] Run 'flutter emulators' to list and start any available device emulators.
[ ] If you expected your device to be detected, please run "flutter doctor" to diagnose
[ ] potential issues, or visit https://flutter.io/setup/ for troubleshooting tips.
[ +18 ms] "flutter run" took 1,014ms.
#0 throwToolExit (package:flutter_tools/src/base/common.dart:26:3)
#1 RunCommand.validateCommand
(package:flutter_tools/src/commands/run.dart:239:7)
#2 FlutterCommand.verifyThenRunCommand
(package:flutter_tools/src/runner/flutter_command.dart:350:11)
#3 FlutterCommand.run.
(package:flutter_tools/src/runner/flutter_command.dart:306:33)
#4 AppContext.run.
(package:flutter_tools/src/base/context.dart:142:29)
#5 _rootRun (dart:async/zone.dart:1124:13)
#6 _CustomZone.run (dart:async/zone.dart:1021:19)
#7 _runZoned (dart:async/zone.dart:1516:10)
#8 runZoned (dart:async/zone.dart:1463:12)
#9 AppContext.run (package:flutter_tools/src/base/context.dart:141:18)
#10 FlutterCommand.run (package:flutter_tools/src/runner/flutter_command.dart:297:20)
#11 CommandRunner.runCommand (package:args/command_runner.dart:194:27)
#12 FlutterCommandRunner.runCommand. (package:flutter_tools/src/runner/flutter_command_runner.dart:347:21)
#13 AppContext.run. (package:flutter_tools/src/base/context.dart:142:29)
#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)
#19 FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:303:19)
#20 CommandRunner.run. (package:args/command_runner.dart:109:29)
#21 new Future.sync (dart:async/future.dart:224:31)
#22 CommandRunner.run (package:args/command_runner.dart:109:11)
#23 FlutterCommandRunner.run (package:flutter_tools/src/runner/flutter_command_runner.dart:211:18)
#24 run. (package:flutter_tools/runner.dart:59:20)
#25 AppContext.run. (package:flutter_tools/src/base/context.dart:142:29)
#26 _rootRun (dart:async/zone.dart:1124:13)
#27 _CustomZone.run (dart:async/zone.dart:1021:19)
#28 _runZoned (dart:async/zone.dart:1516:10)
#29 runZoned (dart:async/zone.dart:1463:12)
#30 AppContext.run (package:flutter_tools/src/base/context.dart:141:18)
#31 runInContext (package:flutter_tools/src/context_runner.dart:42:24)
#32 run (package:flutter_tools/runner.dart:50:10)
#33 main (package:flutter_tools/executable.dart:52:9)
#34 main (file:///b/build/slave/Mac_Flutter_Packaging/build/archive/flutter/packages/fl utter_tools/bin/flutter_tools.dart:8:3)
#35 _startIsolate. (dart:isolate/runtime/libisolate_patch.dart:287:32)
#36 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:171:12)
$ flutter analyze
Analyzing my_app...
info • Unused import: 'package:my_app/main.dart' • test/widget_test.dart:10:8 • unused_import
1 issue found. (ran in 8.4s)
$ flutter doctor -v
[?] Flutter (Channel beta, v0.8.2, on Mac OS X 10.13.6 17G65, locale en)
• Flutter version 0.8.2 at /Users/user143726/Downloads/flutter
• Framework revision 5ab9e70727 (3 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 28.0.2)
• Android SDK at /Users/user143726/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.2
• 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-1024-b01)
• 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 2.0.0
• CocoaPods version 1.5.3
[?] Android Studio (version 3.1)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 28.0.1
• Dart plugin version 173.4700
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)
[!] VS Code (version 1.27.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension not installed; install from
https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[!] Connected devices
! No devices available
! Doctor found issues in 2 categories.
Sanjeev Sang.. 8
经过大量尝试后，我按照以下步骤释放ipa文件：
转到您的终端：
cd your-flutter-project
颤动运行（这会将应用程序启动到您连接或打开的设备上）
现在，再次来到您的MAC终端并输入
扑扑生成apk（这将使发布apk）
对于IOS，
扑扑ios
完成任务后，您将看到文件包的路径，例如
/ Users / Sanjeev / Documents / WorkSpaceForFlutter / myapp / build / ios / iph oneos / Runner.app。
现在转到Xcode>产品>存档，您将看到以下屏幕
这是我解决我的问题的方法 命令/ bin / sh失败，退出代码为255
经过大量尝试后，我按照以下步骤释放ipa文件：
转到您的终端：
cd your-flutter-project
颤动运行（这会将应用程序启动到您连接或打开的设备上）
现在，再次来到您的MAC终端并输入
扑扑生成apk（这将使发布apk）
对于IOS，
扑扑ios
完成任务后，您将看到文件包的路径，例如
/ Users / Sanjeev / Documents / WorkSpaceForFlutter / myapp / build / ios / iph oneos / Runner.app。
现在转到Xcode>产品>存档，您将看到以下屏幕
这是我解决我的问题的方法 命令/ bin / sh失败，退出代码为255
我用以下命令解决了这个问题。
flutter clean flutter build ios
之后，我可以创建签名的版本，也可以上传到App Store。
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