虽然CocoaPods的一些开发版本（以及1.0之前的版本）可能已经将项目的部署目标传播到pod，但这是no longer the case in 1.0。要解决这个问题，the current developer recommends使用安装后钩子。
这里有一个强力方法，可以为生成的Pods项目中的每个Pod强制一个硬编码的部署目标。将其粘贴到Podfile的***末尾***：

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '9.2'
    end
  end
end

由于Podfile使用类似platform :ios, '9.0'的指令为Pods/Pods.xcodeproj项目指定“iOS Deployment Target”（又名IPHONEOS_DEPLOYMENT_TARGET），因此您只需从每个构建目标中删除******************************************************************************************************************************************************************************************
通过将其添加到您的Podfile来完成此操作

platform :ios, '9.0' # set IPHONEOS_DEPLOYMENT_TARGET for the pods project
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

灵感来自github post和Alex Nauda的答案。

为Pod目标永久设置部署目标的方法如下：
后藤-> podfile ->添加下面的代码

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = "12.0"
     end
  end
end

虽然 Alex Nauda 的公认答案是好的，但让Pod从应用程序继承目标可能是一个更好的解决方案。🚀

app_ios_deployment_target = Gem::Version.new('9.2') # Change to your current deployment target

platform :ios, app_ios_deployment_target.version

# Let Pods targets inherit deployment target from the app
# This solution is suggested here: https://github.com/CocoaPods/CocoaPods/issues/4859
post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |configuration|
      pod_ios_deployment_target = Gem::Version.new(configuration.build_settings['IPHONEOS_DEPLOYMENT_TARGET'])
      if pod_ios_deployment_target <= app_ios_deployment_target
        configuration.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET'
      end
    end
  end
end

将目标更改为“11.0”

platform :ios, '11.0'

Swift 5 Simple Solution将下面的代码复制粘贴到你的podFile中

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '13.1' //set your minimum version your all pods will set to mininum 13.1 version :-)
    end
  end
end

安装您的pod

//MARK: - Run the command in your terminal
pod install

快乐编程

1)搜索IPHONEOS_部署_目标
2)更改iOS部署目标