重复符号_main：链接器命令失败答案

【问题标题】：Duplicate symbol _main: linker command failed重复符号_main：链接器命令失败
【发布时间】：2014-05-20 09:50:24
【问题描述】：

我的单一视图，iPad iOS 7 横向视图应用程序构建失败，这是错误消息...

Ld /Users/Angus/Library/Developer/Xcode/DerivedData/Mineplex_Forums-dufpnpqqzcrvjdfuogyvvdoflzrt/Build/Products/Debug-iphonesimulator/Mineplex\ Forums.app/Mineplex\ Forums normal i386
    cd "/Users/Angus/Documents/xCode/Mineplex Forums"
    export IPHONEOS_DEPLOYMENT_TARGET=7.1
    export 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 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.1.sdk -L/Users/Angus/Library/Developer/Xcode/DerivedData/Mineplex_Forums-dufpnpqqzcrvjdfuogyvvdoflzrt/Build/Products/Debug-iphonesimulator -F/Users/Angus/Library/Developer/Xcode/DerivedData/Mineplex_Forums-dufpnpqqzcrvjdfuogyvvdoflzrt/Build/Products/Debug-iphonesimulator -filelist /Users/Angus/Library/Developer/Xcode/DerivedData/Mineplex_Forums-dufpnpqqzcrvjdfuogyvvdoflzrt/Build/Intermediates/Mineplex\ Forums.build/Debug-iphonesimulator/Mineplex\ Forums.build/Objects-normal/i386/Mineplex\ Forums.LinkFileList -Xlinker -objc_abi_version -Xlinker 2 -fobjc-arc -fobjc-link-runtime -Xlinker -no_implicit_dylibs -mios-simulator-version-min=7.1 -framework CoreGraphics -framework UIKit -framework Foundation -Xlinker -dependency_info -Xlinker /Users/Angus/Library/Developer/Xcode/DerivedData/Mineplex_Forums-dufpnpqqzcrvjdfuogyvvdoflzrt/Build/Intermediates/Mineplex\ Forums.build/Debug-iphonesimulator/Mineplex\ Forums.build/Objects-normal/i386/Mineplex\ Forums_dependency_info.dat -o /Users/Angus/Library/Developer/Xcode/DerivedData/Mineplex_Forums-dufpnpqqzcrvjdfuogyvvdoflzrt/Build/Products/Debug-iphonesimulator/Mineplex\ Forums.app/Mineplex\ Forums

duplicate symbol _main in:
    /Users/Angus/Library/Developer/Xcode/DerivedData/Mineplex_Forums-dufpnpqqzcrvjdfuogyvvdoflzrt/Build/Intermediates/Mineplex Forums.build/Debug-iphonesimulator/Mineplex Forums.build/Objects-normal/i386/MinigamesMenu.o
    /Users/Angus/Library/Developer/Xcode/DerivedData/Mineplex_Forums-dufpnpqqzcrvjdfuogyvvdoflzrt/Build/Intermediates/Mineplex Forums.build/Debug-iphonesimulator/Mineplex Forums.build/Objects-normal/i386/main.o
ld: 1 duplicate symbol for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

不太清楚如何解决这个问题，因为我是 iOS 开发新手，这对我来说似乎是 20 行胡言乱语。

【问题讨论】：

标签： ios objective-c linker

【解决方案1】：

看起来您有一个名为 MinigamesMenu 的文件和一个名为 main 的函数，而您的 main.m 文件中还有另一个 main 函数。您必须重命名 MinigamesMenu 中的 main 函数。

【讨论】：

这是我唯一能找到的...int main() { for (NSString* family in [UIFont familyNames]) { NSLog(@"%@", family); for (NSString* name in [UIFont fontNamesForFamilyName: family]) { NSLog(@" %@", name); } }
您必须重命名该函数。
我在我的 MinigamesMenu.h 中创建了一个新整数，我将其命名为“FontTest”，然后回到上面的代码，我删除了“main”，并将其替换为“FontTest”，然后我我收到此错误...“将 'FontTest' 重新定义为不同类型的符号”，我该如何解决这个问题？？
现在你有了一个同名的函数和变量。您将不得不重命名您的 FontTest 整数或 FontTest 函数。 2 个事物不能同名。
好的，我用“Font”替换了上面代码中的“FontTest”，现在在我的最后一个“{”上，我收到一条错误消息......“控制到达非虚函数"