我知道这个问题以前已经被问过很多次了,但到目前为止还没有解决我的问题。我知道当您在项目中获得文件的多个副本时,会发生此错误。
我尝试清理构建,删除任何登录控制器.m文件输入编译源然后构建。很好 - 没有错误。当我在编译源中添加 LoginController.m 文件时,编译器再次给出了相同的错误。
接下来我尝试的是从编译源中删除所有 .m 文件,成功清理并重建,并非常仔细地添加每个 .m 文件。再次出现同样的错误。我没有找到任何重复的文件,那么到底为什么会发生这种情况呢?
请有人指导我。多谢。
EDIT:错误是:
Ld /Users/svp/Library/Developer/Xcode/DerivedData/TryAgain-dhbbyywxclvxfodbunqysmmfefcl/Build/Products/Debug-iphonesimulator/TryAgain.app/TryAgain normal i386
cd /Users/svp/Desktop/TryAgain
setenv MACOSX_DEPLOYMENT_TARGET 10.6
setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk -L/Users/svp/Library/Developer/Xcode/DerivedData/TryAgain-dhbbyywxclvxfodbunqysmmfefcl/Build/Products/Debug-iphonesimulator -L/Users/svp/Desktop/TryAgain/TryAgain -L/Users/svp/Desktop/TryAgain/../CorePlot_1.0/Binaries/iOS -F/Users/svp/Library/Developer/Xcode/DerivedData/TryAgain-dhbbyywxclvxfodbunqysmmfefcl/Build/Products/Debug-iphonesimulator -filelist /Users/svp/Library/Developer/Xcode/DerivedData/TryAgain-dhbbyywxclvxfodbunqysmmfefcl/Build/Intermediates/TryAgain.build/Debug-iphonesimulator/TryAgain.build/Objects-normal/i386/TryAgain.LinkFileList -mmacosx-version-min=10.6 -Xlinker -objc_abi_version -Xlinker 2 -ObjC -all_load -fobjc-arc -D__IPHONE_OS_VERSION_MIN_REQUIRED=50000 -framework MediaPlayer -lz -framework AVFoundation -framework MobileCoreServices -framework SystemConfiguration -framework CFNetwork -framework QuartzCore -framework UIKit -framework Foundation -framework CoreGraphics -lCorePlot-CocoaTouch -o /Users/svp/Library/Developer/Xcode/DerivedData/TryAgain-dhbbyywxclvxfodbunqysmmfefcl/Build/Products/Debug-iphonesimulator/TryAgain.app/TryAgain
ld: duplicate symbol _OBJC_CLASS_$_LoginController in /Users/svp/Library/Developer/Xcode/DerivedData/TryAgain-dhbbyywxclvxfodbunqysmmfefcl/Build/Intermediates/TryAgain.build/Debug-iphonesimulator/TryAgain.build/Objects-normal/i386/LoginController.o and /Users/svp/Library/Developer/Xcode/DerivedData/TryAgain-dhbbyywxclvxfodbunqysmmfefcl/Build/Intermediates/TryAgain.build/Debug-iphonesimulator/TryAgain.build/Objects-normal/i386/Navigator.o for architecture i386
Command /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang failed with exit code 1
您的错误消息表明从 LoginController.m 和 Navigator.m 创建的二进制文件定义了您的实现LoginController
班级。有时,这是因为包含实现逻辑的共享头文件。检查您的 Navigator.h/.m 以获取对LoginController
.
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