Flutter在我的Flutter应用程序的根目录上构建IOS不起作用

Question

每当我从终端运行以下命令：flutter在ios的项目根目录中构建ios时，我都会得到回报：

找不到“ xcodebuild”。为iOS开发，需要Xcode 9.0或更高版本。

为设备构建时遇到错误。我拥有最新的Xcode（版本10.0）。

扑医生：

[?] Flutter (Channel beta, v0.8.2, on Mac OS X 10.13.6 17G65, locale en-GB)
    • Flutter version 0.8.2 at /Users/h/flutter
    • Framework revision 5ab9e70727 (2 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 27.0.3)
    • Android SDK at /Users/h/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-27, build-tools 27.0.3
    • 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-1024-b01)
    • All Android licenses accepted.

[!] iOS toolchain - develop for iOS devices
    ? Xcode installation is incomplete; a full installation is necessary for iOS development.
      Download at: https://developer.apple.com/xcode/download/
      Or install Xcode via the App Store.
      Once installed, run:
        sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
    • ios-deploy 1.9.2
    • CocoaPods version 1.5.3

[?] Android Studio (version 3.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 24.2.1
    • Dart plugin version 173.4700
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)

[?] Connected devices (1 available)
    • h iPhone • 77afb908fc6c490d3fca62cdde9a74ab4e45b4f0 • ios • iOS 11.4.1

! Doctor found issues in 1 category.

我假设从外部HD运行Xcode时引发了IOS问题

Answer 1

我的问题的根源是 Flutter 找不到最新安装的 Xcode 版本。

要修复它，请转到 Xcode->preferences->locations->set value for command Line tools。

Answer 2

如果您通过 Apple 开发人员下载中心或其他来源手动安装了 Xcode 10，那么首先，将您的 Xcode 重命名为您下载的版本名称，就像我下载 Xcode 10.1 版本一样，所以对我来说重命名的名称将是 Xcode10.1.app .app 扩展名是可选的，因为它已经有 .app 扩展名...

之后，将此命令粘贴到您的终端上，

sudo xcode-select --switch /Applications/Xcode10.1.app/Contents/Developer

注意：Xcode 版本（即 Xcode10.1.app ）是 Mendatory，如果它在其他地方很好，重命名并添加它，它是完全安全的，没有任何副作用

Answer 3

来自的建议flutter doctor -v很明确

? Xcode installation is incomplete; a full installation is necessary for iOS development.
  Download at: https://developer.apple.com/xcode/download/
  Or install Xcode via the App Store.
  Once installed, run:
    sudo xcode-select --switch /Applications/Xcode.app/Contents/Develope

您可以尝试启动Xcode，并在要求安装缺少的组件时同意。

ID建议您尝试在X频道10应该已经获得支持的devor master频道。否则请检查此建议https://github.com/flutter/flutter/issues/20685#issuecomment-413524718

Answer 4

在终端中运行以下命令：

1- cd your_project_path

2- sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer

3- sudo xcodebuild -license

4-打开-a模拟器

5-颤动运行