Question

我在xcode中看到了这个错误，但我不知道可能是什么原因。我不知道我做了什么导致这个问题：

localhost:3000

ld: warning: directory not found for option '-L2'
duplicate symbol _OBJC_IVAR_$_JVMenuPopoverViewController._vibrancyEffectView in:
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/MADVenuesTopListAroundViewController.o
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/JVMenuPopoverViewController.o
duplicate symbol _OBJC_IVAR_$_JVMenuPopoverViewController._blurEffectView in:
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/MADVenuesTopListAroundViewController.o
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/JVMenuPopoverViewController.o
duplicate symbol _OBJC_IVAR_$_JVMenuPopoverViewController._vibrancyEffect in:
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/MADVenuesTopListAroundViewController.o
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/JVMenuPopoverViewController.o
duplicate symbol _OBJC_IVAR_$_JVMenuPopoverViewController._doneAnimations in:
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/MADVenuesTopListAroundViewController.o
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/JVMenuPopoverViewController.o
duplicate symbol _OBJC_IVAR_$_JVMenuPopoverViewController._icons in:
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/MADVenuesTopListAroundViewController.o
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/JVMenuPopoverViewController.o
duplicate symbol _OBJC_IVAR_$_JVMenuPopoverViewController._image in:
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/MADVenuesTopListAroundViewController.o
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/JVMenuPopoverViewController.o
duplicate symbol _GMSOrientationMake in:
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/AppDelegate.o
    /Users/DesarrolloOS/Library/Developer/Xcode/DerivedData/aplication-cturpddkzvdycrbrfxglegcvaepl/Build/Intermediates/aplication.build/Debug-iphonesimulator/aplication.build/Objects-normal/i386/MADViewController.o
ld: 16 duplicate symbols for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

您有16个重复的符号。这些值已包含在JVMenuPopoverViewController.o和MADVenuesTopListAroundViewController.o中。你需要他们只在一个地方。

查看名称，我的猜测是您已将部分或全部实现部分放入JVMenuPopoverViewController.h，然后将该文件导入MADVenuesTopListAroundViewController.m。这样，MADVenuesTopListAroundViewController.o和JVMenuPopoverViewController.o都会以该实现部分结束，因此它会在您的应用中进行两次。

您需要将实现部分移动到JVMenuPopoverViewController.m中。只有接口声明应该在JVMenuPopoverViewController.h中。

如果你无法从那里弄清楚，或者我的猜测是错误的，那么你需要显示JVMenuPopoverViewController.h，JVMenuPopoverViewController.m，MADVenuesTopListAroundViewController.h，MADVenuesTopListAroundViewController.m的代码。

链接器命令失败，退出代码为1（使用-v查看调用）xcode

1 个答案: