ios - 架构 i386 : "_OBJC_CLASS_$_ZipException", 的 undefined symbol 引用自:错误

Question

我在我的项目中使用了一些“.o”文件，并且在编译时显示以下错误，

error:linker command failed with exit code 1 (use -v to see invocation)

我已经在下面发布了错误日志

Ld /Users/deepak/Library/Developer/Xcode/DerivedData/app-bnwpvhpbrfdurbdgxucyddqyfosh/Build/Products/Debug-iphonesimulator/app.app/app normal i386
    cd /Users/deepak/Workspace/iosDevelopement/PROJECTS/KML/app
    setenv IPHONEOS_DEPLOYMENT_TARGET 4.3
    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 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk -L/Users/deepak/Library/Developer/Xcode/DerivedData/app-bnwpvhpbrfdurbdgxucyddqyfosh/Build/Products/Debug-iphonesimulator -F/Users/deepak/Library/Developer/Xcode/DerivedData/app-bnwpvhpbrfdurbdgxucyddqyfosh/Build/Products/Debug-iphonesimulator -F/Users/deepak/Workspace/iosDevelopement/PROJECTS/KML/app -filelist /Users/deepak/Library/Developer/Xcode/DerivedData/app-bnwpvhpbrfdurbdgxucyddqyfosh/Build/Intermediates/app.build/Debug-iphonesimulator/app.build/Objects-normal/i386/app.LinkFileList -Xlinker -objc_abi_version -Xlinker 2 -fobjc-arc -fobjc-link-runtime -Xlinker -no_implicit_dylibs -mios-simulator-version-min=4.3 -lstdc++ -licucore -lz -framework MapKit -framework CoreLocation -framework QuartzCore -framework UIKit -framework Foundation -framework CoreGraphics -framework KML -o /Users/deepak/Library/Developer/Xcode/DerivedData/app-bnwpvhpbrfdurbdgxucyddqyfosh/Build/Products/Debug-iphonesimulator/app.app/app
Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_ZipException", referenced from:
      objc-class-ref in ZipFile.o
      objc-class-ref in ZipReadStream.o
      objc-class-ref in ZipWriteStream.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

一开始错误较多，通过引入libs.dylib框架解决，

但仍然存在 2 个错误。

编辑:我已经完成了热门问题 Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error , 但该解决方案对我不起作用

有谁知道我错在哪里？我是 xcode 的问题，缺少库或链接失败吗？

提前致谢

Answer 1

错误消息指出 undefined symbol 被 ZipFile.o、ZipReadStream.o 和 ZipWriteStream.o 引用。这意味着您正在尝试使用 Objective-Zip您应用中的库。

undefined symbol 是 _OBJC_CLASS_$_ZipException。编译器在看到源文件中的 @implemention ZipException 指令时生成此符号。

Objective-Zip 库包含一个名为 ZipException.m 的文件，其中包含 @implementation ZipException 指令。

最可能的解释是您根本没有在目标中包含 ZipException.m。检查你是否这样做了。如果您不知道如何，请查看this answer .

另一种可能的解释是，您修改了 ZipException.m 文件，可能是不小心修改了 @implementation ZipException 指令或对编译器隐藏了它.检查您是否没有修改该文件，并且它包含 @implementation ZipException 指令。