Flutter 全新安装 flutter run 卡住

Question

我是新手，我有全新的安装。

一切都和文档一样。

在全新安装后，我工作正常，但是当我想在另一天的 flutter run 上工作时，我卡住了......我不知道为什么。我只制作样板应用程序。当我构建应用程序时，我 xcode 在模拟器中打开但声明为 flutter run 不起作用。我什至尝试在这种颤动运行中等待 20 分钟，但仍然卡住

颤振医生 -v

[?] Flutter (Channel master, v1.6.4-pre.14, on Mac OS X 10.14.5 18F132, locale
    pl-PL)
    • Flutter version 1.6.4-pre.14 at /Users/db/Desktop/Mobile/flutter
    • Framework revision 81c38b22cb (32 hours ago), 2019-05-24 22:51:02 -0400
    • Engine revision 8dc3a4cde2
    • Dart version 2.3.2 (build 2.3.2-dev.0.0 e3edfd36b2)


[?] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    • Android SDK at /Users/db/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling
      support)
    • Platform android-28, build-tools 28.0.3
    • 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-1343-b01)
    • All Android licenses accepted.

[?] Xcode - develop for iOS and macOS (Xcode 10.2.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 10.2.1, Build version 10E1001
    • CocoaPods version 1.7.0

[?] iOS tools - develop for iOS devices
    • ios-deploy 1.9.4

[?] Android Studio (version 3.4)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 35.3.1
    • Dart plugin version 183.6270
    • Java version OpenJDK Runtime Environment (build
      1.8.0_152-release-1343-b01)

[?] Connected device (1 available)
    • iPhone 8 • F35EFD3E-C637-427A-8405-30EDF202939A • ios •
      com.apple.CoreSimulator.SimRuntime.iOS-12-2 (simulator)

• No issues found!

flutter run -v 卡在这个阶段。

+file:///Users/db/Desktop/Mobile/flutter/packages/flutter/lib/widgets.d
art
[        ] -> +file:///Users/db/Desktop/Flutter/iamsmart/lib/main.dart
[        ] -> 35191e22-84d6-4fab-abef-178ae9e4c665 build/app.dill 0
[ +319 ms] Building bundle
[        ] Writing asset files to build/flutter_assets
[  +55 ms] Wrote build/flutter_assets
[  +12 ms] Using legacy Xcode build system.
[  +27 ms] executing: [/Users/db/Desktop/Flutter/iamsmart/ios/]
/usr/bin/xcodebuild -list

Answer 1

运行这个命令

flutter clean

然后又

flutter run

Answer 2

更新到 1.9.1-hotfix4 修复了该问题