Xcode 9 无法使用 pod 构建 Swift 4 项目

Xcode 9 fails to build Swift 4 project with pod

提问by Nick Gaens

When attempting to build my Swift 4 project in Xcode 9 beta 2, some code signing error occurs after which the build of my app is discontinued.

尝试在 Xcode 9 beta 2 中构建我的 Swift 4 项目时，发生了一些代码签名错误，之后我的应用程序的构建停止了。

The error that is shown in Xcode:

Xcode 中显示的错误：

/usr/bin/codesign --force --sign -  --preserve-metadata=identifier,entitlements '/Users/nickgaens/Library/Developer/Xcode/DerivedData/Emprova_Swift-bbvmoytlhlbqpueyftstselvwhdj/Build/Products/Debug-iphonesimulator/Emprova GPS Swift.app/Frameworks/Alamofire.framework'
/Users/nickgaens/Library/Developer/Xcode/DerivedData/Emprova_Swift-bbvmoytlhlbqpueyftstselvwhdj/Build/Products/Debug-iphonesimulator/Emprova GPS Swift.app/Frameworks/Alamofire.framework: No such file or directory

As you might notice, the --signargument is followed by a single -character.

您可能会注意到，--sign参数后跟一个-字符。

My setup:

我的设置：

• Xcode 9 beta 2 (9M137d) with its bundled Swift 4-version
• Cocoapods v1.2.1 with Podfile

• Xcode 9 beta 2 (9M137d) 及其捆绑的 Swift 4 版本
• 带有 Podfile 的 Cocoapods v1.2.1

platform :ios, '10.0'

target 'Emprova GPS Demo Swift' do
  use_frameworks!

  pod 'Alamofire', '~> 4.5.0'
  pod 'AlamofireNetworkActivityIndicator', '~> 2.2.0'
  pod 'KeyClip'
  pod 'Localize-Swift', '~> 1.7.1'
  pod 'FMDB'

end

target 'Emprova GPS Swift' do
  use_frameworks!

  pod 'Alamofire', '~> 4.5.0'
  pod 'AlamofireNetworkActivityIndicator', '~> 2.2.0'
  pod 'KeyClip'
  pod 'Localize-Swift', '~> 1.7.1'
  pod 'FMDB'

end

• I didn't change a single letter of any of the added pods files.
• I opened Pods.xcodeprojto check and double check Build Settings- Code Signing Identitiyof the Alamofire pod/target, but it is set to Don't Code Sign.
• I already checked my Keychain Access app to see if the Apple Worldwide Developer Relations Certification Authoritywasn't expired (it isn't) and is marked as trusted (it is).
• I already emptied the DerivedData directory multiple times (~/Library/Developer/Xcode/DerivedData) and performed a Clean(both via Cmd+Kand Cmd+Alt+Shift+Kto no avail.
• I already attempted to set the Xcode 'Command Line Tools' (Preferences- Locations- Command Line Tools) to both Xcode 8.3.3 (8E3004b)and Xcode 9.0 (9M137d)to no avail.

• 我没有更改任何添加的 pods 文件的单个字母。
• 我打开Pods.xcodeproj来检查，并仔细检查Build Settings- Code Signing Identitiy在Alamofire荚/目标的，但它被设置为Don't Code Sign。
• 我已经检查了我的 Keychain Access 应用程序，看看Apple Worldwide Developer Relations Certification Authority它是否没有过期（它不是）并且被标记为受信任（它是）。
• 我已经多次清空 DerivedData 目录 ( ~/Library/Developer/Xcode/DerivedData) 并执行了一次Clean（通过Cmd+K和Cmd+Alt+Shift+K都无济于事。
• 我已经尝试将 Xcode 的“命令行工具”（Preferences- Locations- Command Line Tools）设置为两者Xcode 8.3.3 (8E3004b)，Xcode 9.0 (9M137d)但无济于事。

Completely ran out of ideas after having spent multiple hours searching for a solution. Does anyone have a clue why Xcode 9 no longer builds my project?

在花了几个小时寻找解决方案后，完全没有想法。有没有人知道为什么 Xcode 9 不再构建我的项目？

Also, link to my issue on Alamofires GitHub page, for the sake of completeness: #2183.

另外，为了完整起见，链接到我在 Alamofires GitHub 页面上的问题：#2183。

采纳答案by Nick Gaens

I found out what's wrong! Xcode continued using the .xcodeprojfile to open my project when selecting it on the welcome screen, but Cocoapodsrequires the .xcworkspacefile to be used! There's a visual distinction between both entries on Xcode's Welcome screen afterwards: difference between Xcode workspace and project on Welcome screen.

我发现出了什么问题！.xcodeproj在欢迎屏幕上选择它时，Xcode 继续使用该文件打开我的项目，但Cocoapods需要使用该.xcworkspace文件！之后 Xcode 的欢迎屏幕上的两个条目之间存在视觉区别：欢迎屏幕上的Xcode 工作区和项目之间的区别。

Opening the workspace shows two projects in Xcode's Project Navigator: one for my app and a second one named Pods, which embodies all installed pods. Building the app no longer shows weird build errors.

打开工作区会显示 Xcode 中的两个项目Project Navigator：一个用于我的应用程序，另一个名为Pods，它包含所有已安装的 pod。构建应用程序不再显示奇怪的构建错误。