重载了这个插件就无法启动了

来源：5-9 本地存储操作shared_preferences的实战应用

前世定今生

2024-11-13

按照课程，我添加了shared_preferences这个插件，然后flutter run重新编译的时候就报错了。好像是什么东西超时，无法下载。

https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/3.16.0/FlutterMacOS.podspec.json
      CDN: trunk URL couldn't be downloaded: https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/1.12.1303/FlutterMacOS.podspec.json Response:
      Timeout was reached, retries: 4
      CDN: trunk URL couldn't be downloaded: https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/1.17.0/FlutterMacOS.podspec.json Response:
      Timeout was reached, retries: 4
      CDN: trunk URL couldn't be downloaded: https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/1.22.4/FlutterMacOS.podspec.json Response:
      Timeout was reached, retries: 4
      CDN: trunk URL couldn't be downloaded: https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/1.9.102/FlutterMacOS.podspec.json Response:
      Timeout was reached, retries: 4
      CDN: trunk URL couldn't be downloaded: https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/2.0.0/FlutterMacOS.podspec.json Response:
      Timeout was reached, retries: 4
      CDN: trunk URL couldn't be downloaded: https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/2.10.2/FlutterMacOS.podspec.json Response:
      Timeout was reached, retries: 4
      CDN: trunk URL couldn't be downloaded: https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/2.2.2/FlutterMacOS.podspec.json Response:
      Timeout was reached, retries: 4
      CDN: trunk URL couldn't be downloaded: https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/2.5/FlutterMacOS.podspec.json Response:
      Timeout was reached, retries: 4
      CDN: trunk URL couldn't be downloaded: https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/3.0.0/FlutterMacOS.podspec.json Response:
      Timeout was reached, retries: 4
      CDN: trunk URL couldn't be downloaded: https://cdn.jsdelivr.net/cocoa/Specs/4/2/c/FlutterMacOS/3.13.0/FlutterMacOS.podspec.json Response:

写回答

1回答

CrazyCodeBoy

2024-11-13

这个问题通常是因为网络连接问题导致无法从 CDN 下载 FlutterMacOS 的依赖。以下是一些解决方法，您可以尝试来解决此问题：

解决方法

1. 使用代理

如果您可以访问代理服务器或 VPN，可以尝试使用它来提升网络连接速度，避免请求超时。

2. 修改 CocoaPods 源

您可以将 CocoaPods 的源从 cdn.jsdelivr.net 切换到 https://gems.ruby-china.com/，这是国内的镜像源，通常会更快一些。

在终端中执行以下命令：

pod repo remove trunk
pod repo add trunk https://gems.ruby-china.com/

然后再次尝试运行：

flutter clean
flutter pub get
flutter run

3. 使用 pod install 并禁用 CDN

可以在项目的 ios 文件夹中手动运行 pod install 并禁用 CDN 使用，从而直接从 CocoaPods 的源拉取依赖。

执行以下命令：

cd ios
pod install --repo-update

4. 更新 Flutter 和 CocoaPods

确保您使用的是最新版本的 Flutter 和 CocoaPods，因为新版本可能会修复一些网络超时问题。

升级 Flutter：

flutter upgrade

升级 CocoaPods：

sudo gem install cocoapods

5. 检查网络连接

如果您在公司网络环境中运行，可能存在防火墙限制，导致请求被阻断。您可以尝试切换到其他网络，比如家庭网络或移动热点，再次运行命令。

6. 使用 flutter pub get 后重试

如果您的问题出现在 flutter run 的时候，可以尝试先运行：

flutter pub get
flutter clean
flutter run

以上方法中，国内用户通常可以通过设置镜像源来解决此类超时问题。试试这些方法，看看是否能解决您的问题。

CrazyCodeBoy

前世定今生

嗯，应该还是镜像的问题

2024-11-14

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