Xcode下架构x86_64的重复符号

我现在也有同样的问题，但还没有找到正确的答案。我得到了错误:

    /Users/nle/Library/Developer/Xcode/DerivedData/TestMoboSDK-Client-cgodalyxmwqzynaxfbbewrooymnq/Build/Intermediates/TestMoboSDK-Client.build/Debug-iphonesimulator/TestMoboSDK-Client.build/Objects-normal/x86_64/MoboSDK.o
    /Users/nle/Library/Developer/Xcode/DerivedData/TestMoboSDK-Client-cgodalyxmwqzynaxfbbewrooymnq/Build/Products/Debug-iphonesimulator/libMoboSDK.a(MoboSDK.o)
duplicate symbol _OBJC_METACLASS_$_MoboSDK in:
    /Users/nle/Library/Developer/Xcode/DerivedData/TestMoboSDK-Client-cgodalyxmwqzynaxfbbewrooymnq/Build/Intermediates/TestMoboSDK-Client.build/Debug-iphonesimulator/TestMoboSDK-Client.build/Objects-normal/x86_64/MoboSDK.o
    /Users/nle/Library/Developer/Xcode/DerivedData/TestMoboSDK-Client-cgodalyxmwqzynaxfbbewrooymnq/Build/Products/Debug-iphonesimulator/libMoboSDK.a(MoboSDK.o)
ld: 75 duplicate symbols for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

任何帮助都是感激的。

最后，我找到了这个错误的原因，因为我添加了-ObjC到其他链接器标志。在删除这个值之后，我可以成功地构建我的项目，但我不知道为什么。有人能解释一下吗?

当前回答

今天，我得到了同样的错误。错误的关键字是duplicate。我通过:

1. Remove the duplicate file at Build Phases-->Compile Sources
2. If you can not remove it at Build Phases, you need find the file at your project and remove the reference by DELETE :

3. Add the file to your project again
4. Add the file's .m to your Build Phases-->Compile Sources again
5. Build your project, the error will disappear

2017-09-15 06:52:52

其他回答

我的问题是架构x86_64有5个重复的符号。在阅读了这篇文章和他们的回答之后，我尝试用通用的解决方案将GCC_NO_COMMON_BLOCKS = YES改为NO

但是，我没有为我工作，而是从5份拷贝变成了1份…

所以，我注意到最后一个错误，我意识到我的问题是什么，这是一个“不兼容”与这些包(我有在package.json):