ios - CocoaPods - 当应用程序和框架共享依赖项时重复符号

Question

我正在编写一个 iOS 应用程序，使用 CocoaPods 1.6.0 作为我的依赖项管理器。我的项目包括一个 iOS 应用程序项目 (myapp-ui)，以及 3 个 iOS 框架项目 (myapp-common, myapp-model和 myapp-editor)。我还利用 Fabric.io 进行崩溃报告和应用指标。我的 myapp-ui 和 myapp-model 项目都使用了 Fabric 和 Crashlytics 框架。我的 Pods 文件如下所示:

platform :ios, '11.0'
workspace 'MyApp.xcworkspace'

project 'myapp-ui/myapp-ui.xcodeproj'
project 'myapp-common/myapp-common.xcodeproj'
project 'myapp-model/myapp-model.xcodeproj'
project 'myapp-editor/myapp-editor.xcodeproj'

target 'myapp-ui' do
  use_frameworks!

  project 'myapp-ui/myapp-ui.xcodeproj'

  # Pods for myapp-ui
  pod 'SwiftyBeaver'
  pod 'SwifterSwift'
  pod 'Fabric'
  pod 'Crashlytics'
  pod 'KeychainSwift', '~> 13.0'

  target 'myapp-uiTests' do
    inherit! :search_paths
    # Pods for testing
  end

end

target 'myapp-common' do
  use_frameworks!

  project 'myapp-common/myapp-common.xcodeproj'

  # Pods for myapp-common
  pod 'SwiftyBeaver'
  pod 'SwifterSwift'
  pod 'KeychainSwift', '~> 13.0'

end

target 'myapp-model' do
  use_frameworks!

  project 'myapp-model/myapp-model.xcodeproj'

  # Pods for myapp-model
  pod 'SwiftyBeaver'
  pod 'SwifterSwift'
  pod 'Fabric'
  pod 'Crashlytics'

end

target 'myapp-editor' do
  use_frameworks!

  project 'myapp-editor/myapp-editor.xcodeproj'

  # Pods for myapp-editor

end

Pod 安装很好，我的应用程序构建也没有问题。但是，当我运行它时，我在控制台中看到大量错误，看起来像这样:

objc[62607]: Class CLSInternalReport is implemented in both <SOME LOCATION>/Build/Products/Debug-iphonesimulator/myapp_model.framework/myapp_model (0x11252f960) and <SOME OTHER LOCATION>/myapp-ui.app/myapp-ui (0x10f2831e8). One of the two will be used. Which one is undefined.
objc[62607]: Class Crashlytics is implemented in both <SOME LOCATION>/Products/Debug-iphonesimulator/myapp_model.framework/myapp_model (0x11252f9b0) and <SOME OTHER LOCATION>/myapp-ui.app/myapp-ui (0x10f283238). One of the two will be used. Which one is undefined.
objc[62607]: Class CLSFileManager is implemented in both <SOME LOCATION>/Build/Products/Debug-iphonesimulator/myapp_model.framework/myapp_model (0x11252fa00) and <SOME OTHER LOCATION>/myapp-ui.app/myapp-ui (0x10f283288). One of the two will be used. Which one is undefined.
objc[62607]: Class CLSAlert is implemented in both <SOME LOCATION>/Build/Products/Debug-iphonesimulator/myapp_model.framework/myapp_model (0x11252fa78) and <SOME OTHER LOCATION>/myapp-ui.app/myapp-ui (0x10f283300). One of the two will be used. Which one is undefined.

有没有办法解决这些警告？我尝试将它们从 myapp-ui 中删除，认为 myapp-ui 使用了 myapp-model (因此会继承依赖项)但这没有用。我不知道如何解决这个问题。想法？

Answer 1

我收到了与您看到的相同的警告，我花了一些时间才找到修复方法。事实证明，当您有预编译的依赖项时会发生这种情况，例如 Fabric 和 Crashlytics。我认为这是因为它们被复制了两次。

我所做的是仅将这些 pod 添加到应用程序目标。我的 Podfile 最终看起来有点像这样

def pods
    pod 'CGMath'
    ...
end

def app
    pod 'Crashlytics'
    pod 'Fabric'
end

target 'FrameworkTarget' do
    pods
end

target 'AppTarget' do
    pods
    app
end