我正在运行xCode版本10.1(10B61)，Mojave 10.14(18A391)
搜索结果显示，Xcode 10中的类似问题比一年前更严重，但从那以后就没有问题了.go 年的解决方案似乎是切换到传统模式，但现在不行了.我的桌面上存储的源代码似乎与"DerivedData"中的代码冲突，我不确定为什么会突然如此随机地弹出.
如果删除核心数据中添加的最后一个模型，我会发现这个问题消失了.当我向另一个对象添加关系时，它似乎会触发.这显然是随机的.
有什么建议可以帮助我解决这个问题吗？
Multiple commands produce '//Library/Developer/Xcode/DerivedData/ProjectCoreData-ehjvvgovpitmbcegzopwciptfafr/Build/Intermediates.noindex/ProjectCoreData.build/Debug-iphonesimulator/ProjectCoreData.build/Objects-normal/x86_64/Contact+CoreDataClass.o':
Target 'ProjectCoreData' (project 'ProjectCoreData') has compile command for Swift source files
Target 'ProjectCoreData' (project 'ProjectCoreData') has compile command for Swift source files
从日志(log)中:
<unknown>:0: error: filename "Contact+CoreDataClass.swift" used twice: '/Users/<user>/Desktop/ProjectCoreData/Contact+CoreDataClass.swift' and '/Users/<user>/Library/Developer/Xcode/DerivedData/ProjectCoreData-ehjvvgovpitmbcegzopwciptfafr/Build/Intermediates.noindex/ProjectCoreData.build/Debug-iphonesimulator/ProjectCoreData.build/DerivedSources/CoreDataGenerated/ProjectCoreData/Contact+CoreDataClass.swift'
<unknown>:0: note: filenames are used to distinguish private declarations with the same name
<unknown>:0: error: filename "Contact+CoreDataProperties.swift" used twice: '/Users/<user>/Desktop/ProjectCoreData/Contact+CoreDataProperties.swift' and '/Users/<user>/Library/Developer/Xcode/DerivedData/ProjectCoreData-ehjvvgovpitmbcegzopwciptfafr/Build/Intermediates.noindex/ProjectCoreData.build/Debug-iphonesimulator/ProjectCoreData.build/DerivedSources/CoreDataGenerated/ProjectCoreData/Contact+CoreDataProperties.swift'
<unknown>:0: note: filenames are used to distinguish private declarations with the same name
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc failed with exit code 1
