ios - Flutter.h 未找到错误

Question

从几天前开始，我就失去了为 iOS 构建 Flutter 应用程序的能力。我将我的 iPad 更新到 11.4，这迫使我将 xCode 更新到 9.4，而且我认为 Flutter 的新版本也加入其中。以我无限的智慧，我更新了它们，现在不能再测试我的项目了。

随着截止日期的临近，我正在寻求有关如何重新开始行动的建议。我对 Apple 产品不是很熟悉，所以我还不太了解 xCode 等。

这是一个全新的“FLUTTER CREATE testproject”项目，未对其进行任何更改。

FLUTTER 运行日志:

Launching lib/main.dart on iPad Pro (12.9-inch) (2nd generation) in debug mode...
Starting Xcode build...
Xcode build done.
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **

Xcode's output:
↳
    === BUILD TARGET Runner OF PROJECT Runner WITH CONFIGURATION Debug ===
    cp: /Users/trevburley/FlutterSDK/flutter/bin/cache/artifacts/engine/ios/Flutter.framework: No such file or directory
    find: /Users/trevburley/IdeaProjects/testproject/ios/Flutter/Flutter.framework: No such file or directory
    Project /Users/trevburley/IdeaProjects/testproject built and packaged successfully.
    Command /bin/sh emitted errors but did not return a nonzero exit code to indicate failure
    In file included from /Users/trevburley/IdeaProjects/testproject/ios/Runner/GeneratedPluginRegistrant.m:5:
    /Users/trevburley/IdeaProjects/testproject/ios/Runner/GeneratedPluginRegistrant.h:8:9: fatal error: 'Flutter/Flutter.h' file not found
    #import <Flutter/Flutter.h>
            ^~~~~~~~~~~~~~~~~~~
    1 error generated.
Could not build the application for the simulator.
Error launching application on iPad Pro (12.9-inch) (2nd generation).

和冗长的 FLUTTER DOCTOR:

Trevs-MBP:testproject trevburley$ flutter doctor -v
[✓] Flutter (Channel beta, v0.4.4, on Mac OS X 10.13.5 17F77, locale en-GB)
    • Flutter version 0.4.4 at /Users/trevburley/FlutterSDK/flutter
    • Framework revision f9bb4289e9 (3 weeks ago), 2018-05-11 21:44:54 -0700
    • Engine revision 06afdfe54e
    • Dart version 2.0.0-dev.54.0.flutter-46ab040e58

[✓] Android toolchain - develop for Android devices (Android SDK 27.0.3)
    • Android SDK at /Users/trevburley/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 9.4)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 9.4, Build version 9F1027a
    • 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 25.0.1
    • Dart plugin version 173.4700
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)

[✓] IntelliJ IDEA Community Edition (version 2018.1.4)
    • IntelliJ at /Applications/IntelliJ IDEA CE.app
    • Flutter plugin version 25.0.2
    • Dart plugin version 181.4892.1

[✓] VS Code (version 1.23.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Dart Code extension version 2.13.0

[✓] Connected devices (1 available)
    • iPad Pro (12.9-inch) (2nd generation) • D8D24435-C465-4403-B74F-E8DD32DDD30A • ios • iOS 11.4 (simulator)

• No issues found!

Answer 1

我猜这个问题是由于cocoapods安装中断造成的。这是修复:

• 从您的项目中删除ios/Flutter/Flutter.framework
• 在 ios 目录中运行 pod install。应生成 Flutter.framework，包括 Headers/Flutter.h 文件
• 运行构建。现在一切都应该正常了

虽然切换到不同的 Flutter 可能会奏效，但它并不能真正解决缓存损坏的问题。请记住，Flutter 的 master 和 beta 分支不适合生产发布。