MacOS 10.15 Catalina出现颤振问题

Question

在更新到MacOS 10.15 Catalina之后，Flutter出现了问题。

具体来说，Flutter医生抱怨以下方面：

下载的可执行文件无法在主机上执行。

未安装CocoaPods。

重要的是要解释一下，在更新之前，当我的计算机运行Mojave 10.14时，Flutter的这些问题不存在，因此flutter doctor -v报告没有任何问题。

关于第一个问题：下载的可执行文件无法在主机上执行。

Flutter医生提供了此链接：https : //github.com/flutter/flutter/issues/6207

不过，链接的文章是指Linux而不是MacOS ...

关于第二个问题：未安装CocoaPods。

Flutter医生提出以下解决方案：

酿造安装cocoapods

吊舱设置

但是，尽管“ install cocoapods”工作正常，但“ pod setup”失败，指示以下错误：

/usr/local/bin/pod: /usr/local/Cellar/cocoapods/1.7.4/libexec/bin/pod: /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby: bad interpreter: No such file or directory
/usr/local/bin/pod: line 2: /usr/local/Cellar/cocoapods/1.7.4/libexec/bin/pod: Undefined error: 0

运行flutter doctor -v可得到以下结果：

[!] Flutter (Channel dev, v1.8.1, on Mac OS X 10.15 19A501i, locale es-PA)
    • Flutter version 1.8.1 at /Users/podriasereltuyo/flutter
    • Framework revision d3eee57c0b (7 days ago), 2019-07-08 11:04:24 -0700
    • Engine revision 3c51a7bfff
    • Dart version 2.5.0 (build 2.5.0-dev.0.0 b5aeaa6796)
    ? Downloaded executables cannot execute on host.
      See https://github.com/flutter/flutter/issues/6207 for more information



[?] Android toolchain - develop for Android devices (Android SDK version 29.0.1)
MacBook-Air-de-Podria:ptyce podriasereltuyo$ flutter doctor -v
[!] Flutter (Channel dev, v1.8.1, on Mac OS X 10.15 19A501i, locale es-PA)
    • Flutter version 1.8.1 at /Users/podriasereltuyo/flutter
    • Framework revision d3eee57c0b (7 days ago), 2019-07-08 11:04:24 -0700
    • Engine revision 3c51a7bfff
    • Dart version 2.5.0 (build 2.5.0-dev.0.0 b5aeaa6796)
    ? Downloaded executables cannot execute on host.
      See https://github.com/flutter/flutter/issues/6207 for more information



[?] Android toolchain - develop for Android devices (Android SDK version 29.0.1)
    • Android SDK at /Users/podriasereltuyo/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-29, build-tools 29.0.1
    • 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 not installed.
        CocoaPods is used to retrieve the iOS and macOS platform side's plugin code that responds to your plugin usage on the Dart side.
        Without CocoaPods, plugins will not work on iOS or macOS.
        For more info, see https://flutter.dev/platform-plugins
      To install:
        brew install cocoapods
        pod setup

[?] 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 37.0.1
    • Dart plugin version 183.6270
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1343-b01)

[?] Connected device (1 available)
    • Android SDK built for x86 • emulator-5554 • android-x86 • Android 8.0.0 (API 26) (emulator)

! Doctor found issues in 2 categories.

我很想向您寻求帮助，以说明当下载的可执行文件无法在主机上执行时是什么意思？

并且，可以采取什么措施解决它？请？

另外，如果在使用Mojave 10.14时cocoapods运行良好，那么现在似乎可能无法成功运行pod setup的问题是什么？

升级到Macos 10.15 Catalina Beta后，这里的其他人是否对Flutter有任何问题，而Mojave以前是没有此问题的？

谢谢 ！！！

更新...在研究此问题时，我遇到了一个非常可悲的评论，这表明在Catalina中基本上不支持Flutter ...

请在这里找到它：https : //github.com/flutter/flutter/issues/34000

评论说： macOS 10.15尚不支持Flutter，尽管我们显然正在研究它。这是＃22598的重复副本，它与从Catalina中删除32位支持有关。

所以，我开始认为回到莫哈韦的安全上可能是个好主意，至少Flutter的工作还不错...

请分享您的想法，建议或建议？

Answer 1

可以安装cocoapods，运行flutter build ios并在iOS模拟器上运行。

• brew uninstall cocoapods
• sudo gem install -n /usr/local/bin cocoapods
• pod install

详细说明在这里：因为我在MacOS Catalina Beta上，所以该终端不允许我运行或安装可可豆荚吗？