我正在运行 Xcode，没有出现任何问题。突然之间（删除垃圾后；不知道这是否重要），我遇到了这个可爱的问题。
CompileSwiftSources 普通 x86_64 com.apple.xcode.tools.swift.compiler cd /用户/OCedeno/桌面/展示 导出路径=“/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin: /usr/sbin:/sbin" /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc -target x86_64-apple-ios8.1 -module-name Showcase -Onone -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator8.1.sdk -g -module-cache-path /Users/OCedeno/Library/Developer/Xcode/DerivedData/ModuleCache -I /Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Products/Debug-iphonesimulator -F /Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Products/Debug-iphonesimulator -F /Users/OCedeno/Desktop/parse-library-1 -c -j4 /Users/OCedeno/Desktop/Showcase/Showcase/LoginVC.swift /Users/OCedeno/Desktop/Showcase/Showcase/ResponsiveTextFieldViewController.swift /Users/OCedeno/Desktop/Showcase/RegistrationVC.swift /Users/OCedeno/Desktop/Showcase/Showcase/AppDelegate.swift /Users/OCedeno/Desktop/Showcase/Showcase/DefinitionClass.swift /Users/OCedeno/Desktop/Showcase/Showcase/MainPage.swift /Users/OCedeno/Desktop/Showcase/Showcase/SettingsVC.swift -输出文件映射/Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Intermediates/Showcase.build/Debug-iphonesimulator/Showcase.build/Objects-normal/x86_64/Showcase-OutputFileMap.json -parseable-output -serialize-diagnostics -emit-dependency -emit-module -emit-module-path /Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Intermediates/Showcase.build/Debug-iphonesimulator /Showcase.build/Objects-normal/x86_64/Showcase.swiftmodule -Xcc -I/Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Intermediates/Showcase.build/Debug-iphonesimulator/Showcase.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Intermediates/Showcase.build/Debug-iphonesimulator/Showcase.build/Showcase- generated-files.hmap -Xcc -I/Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Intermediates/Showcase.build/Debug-iphonesimulator/Showcase.build/Showcase-own-target-headers.hmap -Xcc -I/Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Intermediates/Showcase.build/Debug-iphonesimulator/Showcase.build/Showcase-all-target-headers.hmap -Xcc -iquote -Xcc /Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Intermediates/Showcase.build/Debug-iphonesimulator/Showcase.build/Showcase-project-headers.hmap -Xcc -I/Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Products/Debug-iphonesimulator/include -Xcc -I/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include -Xcc -I/Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Intermediates/Showcase.build/Debug-iphonesimulator/Showcase.build/DerivedSources/x86_64 -Xcc -I/Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Intermediates/Showcase.build/Debug-iphonesimulator/Showcase.build/DerivedSources -Xcc -DDEBUG=1 -emit-objc-header -emit-objc-header-path /Users/OCedeno/Library/Developer/Xcode/DerivedData/Showcase-cfyodwbqpzuutkgbhoyijshscdhu/Build/Intermediates/Showcase.build/Debug-iphonesimulator/Showcase .build/Objects-normal/x86_64/Showcase-Swift.h -import-objc-header /Users/OCedeno/Desktop/Showcase/Showcase-Bridging-Header.h
命令 /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc 失败，退出代码为 1
您应该尝试：退出 Xcode，删除 Xcode 缓存文件和 DerivedData 文件夹
使用 Option-单击
如果它没有帮助你应该删除并重新安装 Xcode
