大家好。我在构建包含 BSYahooFinance 类的 xcode 项目时遇到问题。这个问题的细节：
ld /Users/yxu/Library/Developer/Xcode/DerivedData/exchange-avxwiknpprmcnlhgjynxlmbwglpm/Build/Products/Debug-iphonesimulator/exchange.app/exchange normal i386
cd /Users/yxu/Documents/project/exchange
setenv IPHONEOS_DEPLOYMENT_TARGET 6.1
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/iPhoneSimulator6.1.sdk -L/Users/yxu/Library/Developer/Xcode/DerivedData/exchange-avxwiknpprmcnlhgjynxlmbwglpm/Build/Products/Debug -iphonesimulator -F/Users/yxu/Library/Developer/Xcode/DerivedData/exchange-avxwiknpprmcnlhgjynxlmbwglpm/Build/Products/Debug-iphonesimulator -filelist /Users/yxu/Library/Developer/Xcode/DerivedData/exchange-avxwiknpprmcnlhgjynxlmbwglpm/Build/Intermediates /exchange.build/Debug-iphonesimulator/exchange.build/Objects-normal/i386/exchange.LinkFileList -Xlinker -objc_abi_version -Xlinker 2 -fobjc-arc -fobjc-link-runtime -Xlinker -no_implicit_dylibs -mios-simulator-version-最小=6。1 -framework CoreData -framework CoreFoundation -lxml2 -lz -framework MobileCoreServices -framework SystemConfiguration -framework CFNetwork -framework UIKit -framework Foundation -framework CoreGraphics -o /Users/yxu/Library/Developer/Xcode/DerivedData/exchange-avxwiknpprmcnlhgjynxlmbwglpm/Build/ Products/Debug-iphonesimulator/exchange.app/exchange
体系结构 i386 的未定义符号：
“_OBJC_CLASS_$_SBJsonParser”，引用自：
YFStockSymbolSearch.o 中的
objc-class-ref YFStockDetailsLoader.o
ld 中的 objc-class-ref：未找到体系结构 i386 的符号
clang：错误：链接器命令退出代码 1 失败（使用 -v 查看调用）
我从谷歌找到了很多答案，比如“找到 .m 文件在你的项目中”或“添加所需的框架”。我都试过了，但仍然无法解决这个问题。你们中的任何人都可以给我一些建议或以前见过这个问题吗？