在 XCode 中编译 IOS 应用程序时出现错误“找不到文件：-fobjc-arc”

Question

添加 OCMock 框架后，我得到了那个奇怪的错误... :(

ld：找不到文件：-fobjc-arc clang：错误：链接器命令失败，退出代码为 1（使用 -v 查看调用）

看起来编译器标志是否试图由 XCode 加载？

有什么想法吗？

最好的问候，hijolan

Answer 1

我在 Xcode 4.3.2 上遇到了完全相同的错误。这是我的导航日志；我正在为 Google 果汁添加它。

Ld /Users/makdad/Library/Developer/Xcode/DerivedData/Journal-bfkvfbsrkmrsjpddzfmwrstjfkzr/Build/Products/Debug-iphonesimulator/JournalTests.octest/JournalTests normal i386
cd /Users/makdad/Documents/MT/mt-mobile/iOS/Journal
setenv MACOSX_DEPLOYMENT_TARGET 10.6
setenv 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 i386 -bundle -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk -L/Users/phooze/Library/Developer/Xcode/DerivedData/Journal-bfkvfbsrkmrsjpddzfmwrstjfkzr/Build/Products/Debug-iphonesimulator -F/Users/phooze/Library/Developer/Xcode/DerivedData/Journal-bfkvfbsrkmrsjpddzfmwrstjfkzr/Build/Products/Debug-iphonesimulator -F/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/Developer/Library/Frameworks -F/Applications/Xcode.app/Contents/Developer/Library/Frameworks -filelist /Users/phooze/Library/Developer/Xcode/DerivedData/Journal-bfkvfbsrkmrsjpddzfmwrstjfkzr/Build/Intermediates/Journal.build/Debug-iphonesimulator/JournalTests.build/Objects-normal/i386/JournalTests.LinkFileList -mmacosx-version-min=10.6 -bundle_loader /Users/phooze/Library/Developer/Xcode/DerivedData/Journal-bfkvfbsrkmrsjpddzfmwrstjfkzr/Build/Products/Debug-iphonesimulator/Journal.app/Journal -Xlinker -objc_abi_version -Xlinker 2 -ObjC -force_load -fobjc-arc -ftest-coverage -Xlinker -no_implicit_dylibs -D__IPHONE_OS_VERSION_MIN_REQUIRED=40100 -lOCMock -framework Twitter -framework MapKit -framework MobileCoreServices -framework SystemConfiguration -lxml2 -licucore -framework CoreData -framework CoreGraphics -framework CFNetwork -framework QuartzCore -framework SenTestingKit -framework UIKit -framework Foundation -o /Users/phooze/Library/Developer/Xcode/DerivedData/Journal-bfkvfbsrkmrsjpddzfmwrstjfkzr/Build/Products/Debug-iphonesimulator/JournalTests.octest/JournalTests

OCMock 指令明确要求您添加链接器标志 -- -ObjC 和 -force_load。

-force_load 需要一个值 - 请参阅 the answer to this question，它解释了如果您不想指定库名称，可以使用 -all_load。

作为一个只花了 25 分钟的人，我应该再次查看 OCMock 教程——我认为该说明中的内容不是很清楚。

This blog post 有一个更好的图像，可以准确地显示您的设置应该是什么样子。