在`.symlinks/plugins/google_sign_in_ios/darwin`中找不到`google_sign_in_ios`的podspec

Question

无法在 iOS 设备（模拟器）上运行我的 flutter 应用程序，并且失败并显示以下错误日志，尽管它在 Android 上运行良好。一切都工作正常，直到我尝试添加 MacOS 构建，该构建已更改回滚，但相同的错误仍然存在。

我还卸载并重新安装了

cocopods

，清理了缓存，flutter clean，pod安装，pod [repo]更新，但似乎没有任何效果，并且在我的Mac Book pro M2（苹果芯片）上总是显示相同的错误。无论如何，在具有相同代码库的 Intel 芯片 Macbook 上运行良好，所以肯定与苹果芯片架构和/或一些本地缓存有关？

运行控制台日志输出（错误）：

Launching lib/main.dart on iPhone 14 Plus (6.7-inch) in debug mode...
Running pod install...
CocoaPods' output:
↳
      Preparing

    Analyzing dependencies

    Inspecting targets to integrate
      Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``)

    Finding Podfile changes
      ..
      - google_mobile_ads
      - google_sign_in_ios
      ...

    Fetching external sources
    -> Fetching podspec for `Flutter` from `Flutter`
    -> Fetching podspec for `app_tracking_transparency` from `.symlinks/plugins/app_tracking_transparency/ios`
    -> Fetching podspec for `file_picker` from `.symlinks/plugins/file_picker/ios`
    -> Fetching podspec for `flutter_native_splash` from `.symlinks/plugins/flutter_native_splash/ios`
    -> Fetching podspec for `google_mobile_ads` from `.symlinks/plugins/google_mobile_ads/ios`
    -> Fetching podspec for `google_sign_in_ios` from `.symlinks/plugins/google_sign_in_ios/darwin`
    [!] No podspec found for `google_sign_in_ios` in `.symlinks/plugins/google_sign_in_ios/darwin`

    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/external_sources/path_source.rb:14:in `block in fetch'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/user_interface.rb:64:in `section'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/external_sources/path_source.rb:11:in `fetch'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:997:in `fetch_external_source'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:976:in `block (2 levels) in fetch_external_sources'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:975:in `each'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:975:in `block in fetch_external_sources'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/user_interface.rb:64:in `section'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:974:in `fetch_external_sources'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:118:in `analyze'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:422:in `analyze'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:244:in `block in resolve_dependencies'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/user_interface.rb:64:in `section'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:243:in `resolve_dependencies'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:162:in `install!'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/command/install.rb:52:in `run'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/claide-1.1.0/lib/claide/command.rb:334:in `run'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/command.rb:52:in `run'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/bin/pod:55:in `<top (required)>'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/bin/pod:25:in `load'
    /opt/homebrew/Cellar/cocoapods/1.15.2/libexec/bin/pod:25:in `<main>'

Error output from CocoaPods:
↳

    [!] Automatically assigning platform `iOS` with version `15.2` on target `Runner` because no platform was specified. Please specify a platform for this target in your Podfile. See `https://guides.cocoapods.org/syntax/podfile.html#platform`.

Error running pod install
Error launching application on iPhone 14 Plus (6.7-inch).

我的 pubspec.yaml 文件包含：

# versions available, run `flutter pub outdated`.
version: 1.0.0+1

environment:
  sdk: '>=3.2.0 <4.0.0'

dependencies:
  flutter:
    sdk: flutter

  #...
  # other dependencies.
  #...
  googleapis: ^11.4.0
  google_sign_in: ^6.2.1
  extension_google_sign_in_as_googleapis_auth: ^2.0.11

Answer 1

已解决此问题，问题出在

.pub-cache

文件夹中。

根本原因/问题：

检查了我的 flutter 项目根文件夹中的

.flutter-plugins-dependencies

和

.flutter-plugins

文件后，了解到插件正在我的用户主目录中兑现，并且

~/.pub-cache/hosted/pub.dev/google_sign_in_ios-5.7.4.bkp/darwin/

是空的。如下：

$ cd ~/.pub-cache/hosted/pub.dev

$ ls -l | grep 'google_sign_in_ios'
drwx------  12 vijay  staff  384 29 Oct 19:38 google_sign_in_ios-5.6.4
drwx------@ 12 vijay  staff  384  9 Apr 02:34 google_sign_in_ios-5.6.5
drwx------@ 12 vijay  staff  384  9 Apr 02:34 google_sign_in_ios-5.7.4

$ ls google_sign_in_ios-5.7.4.bkp/darwin/

修复：

简单地重命名/删除

google_sign_in_ios-5.7.4

，如下所示：

$ mv google_sign_in_ios-5.7.4 google_sign_in_ios-5.7.4.bkp

之后重新运行 flutter 应用程序，花了一分钟时间下载了一些东西（不确定在哪里），并且应用程序成功加载到我的 iOS 模拟器上。

已验证：

只是为了确定这个简单的修复是否真的是解决方案（对于困扰我好几天的问题，因为我简直不敢相信），我做了

mv google_sign_in_ios-5.7.4.bkp google_sign_in_ios-5.7.4

并停止并重新运行该应用程序。正如预期的那样，它失败了，并显示相同的原始错误日志。

现在我应用了上述修复，宾果游戏成功了。希望它对某人有帮助。