iOS 部署目标 'IPHONEOS_DEPLOYMENT_TARGET' 设置为 8.0，在 Flutter 如何更改最小 IOS 部署目标

Question

我在项目中将所有内容更改为 9.0，但在许多 pod 中出现相同的错误。

我尝试做很多不同的事情，但没有任何效果。有谁知道我该如何解决这个问题？

warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is
9.0 to 14.0.99. (in target 'gRPC-C++-gRPCCertificates-Cpp' from project 'Pods')
warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is
9.0 to 14.0.99. (in target 'GoogleAppMeasurement' from project 'Pods')
warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is
9.0 to 14.0.99. (in target 'FirebaseAuth' from project 'Pods')
warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is
9.0 to 14.0.99. (in target 'GoogleUtilities' from project 'Pods')
warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is
9.0 to 14.0.99. (in target 'vibration' from project 'Pods')
warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is
9.0 to 14.0.99. (in target 'nanopb' from project 'Pods')
warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is
9.0 to 14.0.99. (in target 'BoringSSL-GRPC' from project 'Pods')
warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is
9.0 to 14.0.99. (in target 'gRPC-Core' from project 'Pods')
warning: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is
9.0 to 14.0.99. (in target 'gRPC-C++' from project 'Pods')

为设备构建时遇到错误。

Answer 1

对我有用的是@raffaelli-lc 和@arhan-reddy-busam 答案的组合。

确保您执行以下操作：

• 设置MinimumOSVersion为 9.0 英寸ios/Flutter/AppFrameworkInfo.plist
• 确保您取消注释platform :ios, '9.0'在ios/Podfile
• 确保ios/Podfile包含以下安装后脚本：

    post_install do |installer|
      installer.pods_project.targets.each do |target|
        flutter_additional_ios_build_settings(target)
        target.build_configurations.each do |config|
          config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '9.0'
        end
      end
    end

在进行生产构建时，以下例程对我有用：

    flutter clean \
        && rm ios/Podfile.lock pubspec.lock \
        && rm -rf ios/Pods ios/Runner.xcworkspace \
        && flutter build ios --build-name=1.0.0 --build-number=1 --release --dart-define=MY_APP_ENV=prod

Answer 2

我用这段代码解决了，谢谢！在 PodFile 的末尾

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET'
    end
  end
end

Answer 3

这是因为 XCode 12 只支持构建 iOS 目标版本 9 - 14。不幸的是，flutter 设置的默认 iOS 目标是 8。但是您应该能够使用 XCode 更改 ios/Runner.xcworkspace 文件中的目标。请参阅flutter 文档部分“查看 Xcode 项目设置”-> 标题“部署目标：”。

您也可以尝试更新扑1.22 beta测试版，支持iOS的14和12的XCode（如注意这里）

Answer 4

转到 Pods 并为您使用的每个框架更改 iOS 版本，如我的屏幕截图所示

Answer 5

我尝试了很多方法，但似乎解决了这个问题的是：

flutter pub cache repair

https://dart.dev/tools/pub/cmd/pub-cache