Swift:Apple Mach-O链接器错误(文件太小,不适用于架构x86_64)

Question

我正在创建一个从网站获取信息的天气应用程序.我最后一次编码(昨晚)一切都很好,我能够编译并运行模拟器,没有任何错误.就在今天,当我启动同一个项目而没有改变任何东西时,我得到了"Apple Mach-O Linker Error".你能帮忙吗？

以下是错误的详细信息:

Ld /Users/Allister/Library/Developer/Xcode/DerivedData/Haze_Meter-dkjjcmjehyitmcbhkcbujnsrhwpu/Build/Products/Debug-iphonesimulator/Haze\ Meter.app/Haze\ Meter normal x86_64
    cd "/Users/Allister/Documents/XCODE/Haze Meter"
    export IPHONEOS_DEPLOYMENT_TARGET=8.3
    export PATH="/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/clang -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator8.3.sdk -L/Users/Allister/Library/Developer/Xcode/DerivedData/Haze_Meter-dkjjcmjehyitmcbhkcbujnsrhwpu/Build/Products/Debug-iphonesimulator -F/Users/Allister/Library/Developer/Xcode/DerivedData/Haze_Meter-dkjjcmjehyitmcbhkcbujnsrhwpu/Build/Products/Debug-iphonesimulator -filelist /Users/Allister/Library/Developer/Xcode/DerivedData/Haze_Meter-dkjjcmjehyitmcbhkcbujnsrhwpu/Build/Intermediates/Haze\ Meter.build/Debug-iphonesimulator/Haze\ Meter.build/Objects-normal/x86_64/Haze\ Meter.LinkFileList -Xlinker -rpath -Xlinker @executable_path/Frameworks -Xlinker -objc_abi_version -Xlinker 2 -L/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/iphonesimulator -Xlinker -add_ast_path -Xlinker /Users/Allister/Library/Developer/Xcode/DerivedData/Haze_Meter-dkjjcmjehyitmcbhkcbujnsrhwpu/Build/Intermediates/Haze\ Meter.build/Debug-iphonesimulator/Haze\ Meter.build/Objects-normal/x86_64/Haze_Meter.swiftmodule -mios-simulator-version-min=8.3 -Xlinker -dependency_info -Xlinker /Users/Allister/Library/Developer/Xcode/DerivedData/Haze_Meter-dkjjcmjehyitmcbhkcbujnsrhwpu/Build/Intermediates/Haze\ Meter.build/Debug-iphonesimulator/Haze\ Meter.build/Objects-normal/x86_64/Haze\ Meter_dependency_info.dat -o /Users/Allister/Library/Developer/Xcode/DerivedData/Haze_Meter-dkjjcmjehyitmcbhkcbujnsrhwpu/Build/Products/Debug-iphonesimulator/Haze\ Meter.app/Haze\ Meter

在底部:

ld: file too small (length=0) file '/Users/Allister/Library/Developer/Xcode/DerivedData/Haze_Meter-dkjjcmjehyitmcbhkcbujnsrhwpu/Build/Intermediates/Haze Meter.build/Debug-iphonesimulator/Haze Meter.build/Objects-normal/x86_64/ViewController.o' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我已经检查了StackOverflow上的其他"Apple Mach-O链接器错误",但他们似乎与我有一个不同的"ld",尽管是相同的"铿锵".

Answer 1

尝试完全重建/清理.前一个版本可能已异常中止,ViewController.o文件损坏或零大小.

要清理:在Xcode"产品"菜单中,选择"清洁"(快捷键:Cmd + Shift + K)

要重建:在Xcode"产品"菜单中,选择"构建"(快捷方式:Cmd + B)

如果它不起作用:在Xcode"产品"菜单中,按住Option键,然后选择"Clean Build Folder"

来自HERE的参考资料.

Answer 2

您(通常)不必清理,只需打开它提到的文件并重新保存它,以便xcode认为它已更改.然后你可以做一个增量构建(更快).