小编Geo*_*lex的帖子

我尝试在带有 M1 芯片的新 Mac 上构建现有的 flutter 项目。\n由于缺少 audio_session 模块，我遇到以下错误。

Launching lib/main.dart on iPhone 12 in debug mode...\nRunning Xcode build...                                                  \n \xe2\x94\x94\xe2\x94\x80Compiling, linking and signing...                        340ms\nXcode build done.                                            4.7s\nFailed to build iOS app\nError output from Xcode build:\n\xe2\x86\xb3\n    objc[7636]: Class AMSupportURLConnectionDelegate is implemented in both ?? (0x1f2fe0188) and ?? (0x117e8c2b8). One of the two will be used. Which one is undefined.\n    objc[7636]: Class AMSupportURLSession is implemented in both ?? (0x1f2fe01d8) and ?? (0x117e8c308). One of the two will be used. Which …

我正在尝试从 Xcode 12.4 版为带有 iOS 14.4 的 iPhone 12 模拟器构建一个颤振项目。通过运行从命令行一切正常flutter run。

在 Xcode 中，我遇到了以下错误代码。

ld: warning: ignoring file /Users/epsilon/Library/Developer/Xcode/DerivedData/Runner-fukggautraualohaflrpmsjaeyto/Build/Products/Debug-iphonesimulator/Reachability/Reachability.framework/Reachability, building for iOS Simulator-x86_64 but attempting to link with file built for iOS Simulator-arm64
Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_Reachability", referenced from:
      objc-class-ref in FLTConnectivityPlugin.o
  "_kReachabilityChangedNotification", referenced from:
      -[FLTConnectivityPlugin onListenWithArguments:eventSink:] in FLTConnectivityPlugin.o
ld: symbol(s) not found for architecture x86_64

我已经按照此处发布的解决方案进行操作：https : //stackoverflow.com/a/63955114/8640235以及同一帖子中的其他人，但没有成功。

后期编辑：

我正在使用 strace 调查进程的 select 系统调用，并试图弄清楚这left意味着什么。在从 strace 日志中提取的调试行下方找到。

select(13, [6 7 8 11 12], [], NULL, {0, 10000}) = 1 (in [11], **left** {0, 9994})

到目前为止，我在可用文档中没有找到任何内容。