XcodeGen构建iOS16/Xcode14单Target watchOS应用失败求助

使用XcodeGen构建Xcode14（对应iOS16/watchOS9）新增的单Target watchOS应用时，触发以下重复输出文件的构建错误：

Prepare build
note: Building targets in dependency order
error: Multiple commands produce '/Users/martin/Library/Developer/Xcode/DerivedData/WatchTestGen-eqtccuxbzqoyuncgwdiwyamlfkpb/Build/Products/Debug-watchsimulator/WatchTestWatch Watch App.app/WatchTestWatch Watch App'
    note: Target 'WatchTestWatch Watch App' (project 'WatchTestGen'): CopyAndPreserveArchs /Users/martin/Library/Developer/Xcode/DerivedData/WatchTestGen-eqtccuxbzqoyuncgwdiwyamlfkpb/Build/Products/Debug-watchsimulator/WatchTestWatch Watch App.app/WatchTestWatch Watch App
    note: Target 'WatchTestWatch Watch App' (project 'WatchTestGen') has a command with output '/Users/martin/Library/Developer/Xcode/DerivedData/WatchTestGen-eqtccuxbzqoyuncgwdiwyamlfkpb/Build/Products/Debug-watchsimulator/WatchTestWatch Watch App.app/WatchTestWatch Watch App'


Multiple commands produce '/Users/martin/Library/Developer/Xcode/DerivedData/WatchTestGen-eqtccuxbzqoyuncgwdiwyamlfkpb/Build/Products/Debug-watchsimulator/WatchTestWatch Watch App.app/WatchTestWatch Watch App'

Build failed    2022-08-30 16:41    1.2 seconds

已知手动创建的WatchTest.xcodeproj可正常构建运行，但XcodeGen生成的WatchTestGen.xcodeproj构建失败，需使用Xcode14 Beta版本排查。

排查方向 #

• 对比手动项目与生成项目的Build Phases：重点检查CopyAndPreserveArchs步骤是否重复出现，Xcode14的单Target watchOS App会自动处理主二进制的复制，XcodeGen可能因配置问题额外添加了重复的构建命令
• 检查project.yml中Watch App Target的配置：确认Target类型是否为watch2app，是否重复引用了主可执行文件或添加了多余的copyFiles配置
• 验证XcodeGen版本：确保使用支持Xcode14单Target watchOS结构的最新版本，旧版本可能未适配Xcode14的新项目规范
• 对比两个项目的Build Settings：重点核对EXECUTABLE_NAME、WRAPPER_EXTENSION、PRODUCT_NAME等字段，避免因命名冲突导致重复输出路径
• 检查project.yml中的文件引用：确认是否将主可执行文件同时添加到了sources和resources列表中，造成重复打包

内容的提问来源于stack exchange，提问作者Martin