由于未定义符号，Xcode 构建失败:__swift_FORCE_LOAD_$_swiftUIKit [英] Xcode build fails due to Undefined symbol: __swift_FORCE_LOAD_$_swiftUIKit

问题描述

我在 Xcode 11(一个带有 SwiftUI 的 iOS 单视图项目)中创建了一个全新的项目，并启用 Mac 作为目标设备.没有做任何其他事情，我尝试构建，但出现此错误:

I created a brand new project in Xcode 11 (an iOS single-view project with SwiftUI) and enable Mac as a target device. Without doing anything else, I try to build, and I get this error:

ld: warning: directory not found for option '-L/Applications/Xcode'
ld: warning: directory not found for option '-L11.0-Beta.2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/uikitformac'
ld: warning: directory not found for option '-L/Applications/Xcode'
ld: warning: directory not found for option '-L11.0-Beta.2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/uikitformac'
ld: warning: Could not find or use auto-linked library 'swiftUIKit'
Undefined symbols for architecture x86_64:
  "__swift_FORCE_LOAD_$_swiftUIKit", referenced from:
      __swift_FORCE_LOAD_$_swiftUIKit_$_MyProject in AppDelegate.o
      __swift_FORCE_LOAD_$_swiftUIKit_$_MyProject in SceneDelegate.o
      __swift_FORCE_LOAD_$_swiftUIKit_$_MyProject in ContentView.o
     (maybe you meant: __swift_FORCE_LOAD_$_swiftUIKit_$_MyProject)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

<小时>

环境

• macOS 10.15 Catalina Beta (19A487l)
• Xcode 11.0 测试版 2 (11M337n)
  • Swift 5 模式

  推荐答案

  正如警告所说 directory not found 所暗示的那样，Xcode 似乎不喜欢在其包的文件名中包含空格.

  As hinted by the warnings saying directory not found, it seems Xcode doesn't like having a space in its bundle's file name.

  我将它从 Xcode 11.0-Beta.2.app 重命名为 Xcode-11.0-Beta.2.app，现在它构建得很好.

  I renamed it from Xcode 11.0-Beta.2.app to Xcode-11.0-Beta.2.app and now it builds just fine.

  这篇关于由于未定义符号，Xcode 构建失败:__swift_FORCE_LOAD_$_swiftUIKit的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！