使用xcode链接错误[关闭]

Question

大家好，我正在尝试构建我的应用程序，但链接时它并没有停止？奇怪的错误是日志

Ld /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Products/Debug-iphonesimulator/SearchPRO.app/SearchPRO 正常 i386 cd /用户/alyjamy/下载/SearchPRO 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 -dynamiclib -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/ iPhoneSimulator5.1.sdk -L/Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Products/Debug-iphonesimulator -F/Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/ Build/Products/Debug-iphonesimulator -filelist /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/SearchPRO。 LinkFileList -mmacosx-version-min=10.6 -Xlinker -objc_abi_version -Xlinker 2 -fobjc-link-runtime -Xlinker -no_implicit_dylibs -D__IPHONE_OS_VERSION_MIN_REQUIRED=50100 -lxml2 -lz -framework MobileCoreServices -framework SystemConfiguration -framework CoreGraphics -framework CFNetwork -framework U IKit -framework Foundation -o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Products/Debug-iphonesimulator/SearchPRO.app/SearchPRO

重复符号 _OBJC_IVAR__Google_SearchView.refParentViewController 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Google_SearchView-F440D65BB38D9558.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Google_SearchView-41A2B8A23D2A1652.o 重复符号 _OBJC_CLASS_$_Google_SearchView 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Google_SearchView-F440D65BB38D9558.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Google_SearchView-41A2B8A23D2A1652.o 重复符号 _OBJC_METACLASS_$_Google_SearchView 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Google_SearchView-F440D65BB38D9558.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Google_SearchView-41A2B8A23D2A1652.o 重复符号 _OBJC_IVAR_$_HomeView.refParentViewController 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/HomeView-5DC4F3DA47F5C55B.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/HomeView-B126BFA53128822A.o 重复符号 _OBJC_CLASS_$_HomeView 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/HomeView-5DC4F3DA47F5C55B.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/HomeView-B126BFA53128822A.o 重复符号 _OBJC_METACLASS_$_HomeView 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/HomeView-5DC4F3DA47F5C55B.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/HomeView-B126BFA53128822A.o 重复符号 _main 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/main-90B20DF7C3920B56.o 重复符号 _OBJC_IVAR_$_iSearchProAppDelegate.navigationController 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/iSearchProAppDelegate-FC941BF9786A1D61.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/iSearchProAppDelegate-5039F6A504D7A3A.o 重复符号 _OBJC_IVAR_$_iSearchProAppDelegate.window 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/iSearchProAppDelegate-FC941BF9786A1D61.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/iSearchProAppDelegate-5039F6A504D7A3A.o 重复符号 _OBJC_CLASS_$_iSearchProAppDelegate 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/iSearchProAppDelegate-FC941BF9786A1D61.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/iSearchProAppDelegate-5039F6A504D7A3A.o 重复符号 _OBJC_METACLASS_$_iSearchProAppDelegate 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/iSearchProAppDelegate-FC941BF9786A1D61.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/iSearchProAppDelegate-5039F6A504D7A3A.o 重复符号 _OBJC_IVAR__$_Twitter_SearchView.refParentViewController 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Twitter_SearchView-3920747535A2AD6A.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Twitter_SearchView-F6065DBEB33D9A3C.o 重复符号 _OBJC_CLASS_$_Twitter_SearchView 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Twitter_SearchView-3920747535A2AD6A.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Twitter_SearchView-F6065DBEB33D9A3C.o 重复符号 _OBJC_METACLASS_$_Twitter_SearchView 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Twitter_SearchView-3920747535A2AD6A.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Twitter_SearchView-F6065DBEB33D9A3C.o 重复符号 _OBJC_CLASS_$_Twitter_SearchViewController 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Twitter_SearchViewController-2A2332C99892CD6C.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Twitter_SearchViewController-E7091C13162DBA3E.o 重复符号 _OBJC_METACLASS_$_Twitter_SearchViewController 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Twitter_SearchViewController-2A2332C99892CD6C.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Twitter_SearchViewController-E7091C13162DBA3E.o 重复符号 _OBJC_IVAR__$_Youtube_SearchView.refParentViewController 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Youtube_SearchView-1B25F11DFB82ED6E.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Youtube_SearchView-FE4CD6F8B0DC7B2A.o 重复符号 _OBJC_CLASS_$_Youtube_SearchView 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Youtube_SearchView-1B25F11DFB82ED6E.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Youtube_SearchView-FE4CD6F8B0DC7B2A.o 重复符号 _OBJC_METACLASS_$_Youtube_SearchView 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Youtube_SearchView-1B25F11DFB82ED6E.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Youtube_SearchView-FE4CD6F8B0DC7B2A.o 重复符号 _OBJC_CLASS_$_Youtube_SearchViewController 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Youtube_SearchViewController-3269AC039631AE5A.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Youtube_SearchViewController-EF4F954D13CC9B2C.o 重复符号 _OBJC_METACLASS_$_Youtube_SearchViewController 在： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Youtube_SearchViewController-3269AC039631AE5A.o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Youtube_SearchViewController-EF4F954D13CC9B2C.o ld：架构 i386 的 21 个重复符号 clang：错误：链接器命令失败，退出代码为 1（使用 -v 查看调用）

你能帮我吗

当我删除副本时解决了这个错误，现在我有了它

Ld /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Products/Debug-iphonesimulator/SearchPRO.app/SearchPRO 正常 i386 cd /用户/alyjamy/下载/SearchPRO 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 -dynamiclib -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/ iPhoneSimulator5.1.sdk -L/Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Products/Debug-iphonesimulator -F/Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/ Build/Products/Debug-iphonesimulator -filelist /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/SearchPRO。 LinkFileList -Xlinker --no-demangle -mmacosx-version-min=10.6 -Xlinker -objc_abi_version -Xlinker 2 -fobjc-link-runtime -Xlinker -no_implicit_dylibs -D__IPHONE_OS_VERSION_MIN_REQUIRED=50100 -lxml2 -lz -framework MobileCoreServices -framework SystemConfiguration -framework CoreGraphics -框架CFNetwork -framework UIKit -framework Foundation -o /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Products/Debug-iphonesimulator/SearchPRO.app/SearchPRO

重复符号_main： /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/main-AC1E3FF737776656.o ld：架构 i386 的 1 个重复符号 clang：错误：链接器命令失败，退出代码为 1（使用 -v 查看调用）

??

Answer 1

您的 Youtube_SearchViewController.m 和其他 Youtube_SearchView.m 文件在“编译源”构建阶段列出了两次。

在左侧的 Project Navigator 中选择您的项目，然后在目标列表中选择您的目标，转到“构建阶段”选项卡，然后删除所有重复文件（这样每个 .m 文件只列出一次） .

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关于如何解释构建日志的详细信息（重点添加并重新格式化）：

重复符号 _OBJC_IVAR_$_Google_SearchView.refParentViewController 在：

• /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Google_SearchView-F440D65BB38D9558.o
• /Users/alyjamy/Library/Developer/Xcode/DerivedData/SearchPRO-byuygadvkgrdzqgiethjtvoscvzp/Build/Intermediates/SearchPRO.build/Debug-iphonesimulator/SearchPRO.build/Objects-normal/i386/Google_SearchView-41A2B8A23D2A1652.o

在上面的摘录中，Google_searchView.m 被编译了两次，生成了 Google_SearchView-F440D65BB38D9558.o 和 Google_SearchView-41A2B8A23D2A1652.o