当我尝试在XCode中构建代码时遇到此错误。请帮忙。
Xcode版本-10.2
react-native-cli：2.0.1
本机：0.60.5
Ld /Users/subhasmith/Library/Developer/Xcode/DerivedData/Hire-fffkpsjlaicnrwbnajsufelxvxmp/Build/Products/Debug-iphonesimulator/Hire.app/Hire普通x86_64（目标：雇用） cd /用户/subhasmith/WebstormProjects/hire.ios/ios 导出IPHONEOS_DEPLOYMENT_TARGET = 8.0 /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12。 2.sdk -L / Users / subhasmith / Library / Developer / Xcode / DerivedData / Hire-fffkpsjlaicnrwbnajsufelxvxmp / Build / Products / Debug-iphonesimulator -F / Users / subhasmith / Library / Developer / Xcode / DerivedData / Hire-fffkbxjsBuild产品/ iphone模拟器-F /用户/subhasmith/WebstormProjects/hire.ios/ios-文件列表/用户/ subhasmith /库/开发人员/Xcode/DerivedData/Hire-fffkpsjlaicnrwbnajsufelxvxmp/Build/Intermediates.noindex/Hire.build/Debug- iphonesimulator / Hire.build / Objects-normal / x86_64 / Hire.LinkFileList -Xlinker -rpath -Xlinker @ executable_path / Frameworks -mios-simulator-version-min = 8.0 -Xlinker -object_path_lto -Xlinker / Users / subhasmith / Library / Developer / Xcode / DerivedData / Hire-fffkpsjlaicnrwbnajsufelxvxmp / Build / Intermediates.noindex / Hire.build / Debug- iphonesimulator / Hire.build / Objects-normal / x86_64 / Hire_lto.o -Xlinker -no_deduplicate -Xlinker -objc_abi_version -Xlinker 2 -fobjc-arc -fobjc-link-runtime -ObjC -lc ++ -Xlinker -sectcreate -Xlinker __TEXT -Xlinkments -Xlinker /用户/ subhasmith /库/开发人员/Xcode/DerivedData/Hire-fffkpsjlaicnrwbnajsufelxvxmp/Build/Intermediates.noindex/Hire.build/Debug-iphonesimulator/Hire.build/Hire.app-Simulated.xcent -Xlinker -dependency_info -Xlinker /Users/subhasmith/Library/Developer/Xcode/DerivedData/Hire-fffkpsjlaicnrwbnajsufelxvxmp/Build/Intermediates.noindex/Hire.build/Debug-iphonesimulator/Hire.build/Objects-normal/x86_64/Hire_dependency_info.dha -o / Users /Library/Developer/Xcode/DerivedData/Hire-fffkpsjlaicnrwbnajsufelxvxmp/Build/Products/Debug-iphonesimulator/Hire.app/Hire
体系结构x86_64的未定义符号： 引用自以下地址的“ _OBJC_CLASS _ $ _ Answers”： AppDelegate.o中的objc-class-ref 从以下位置引用的“ _OBJC_CLASS _ $ _ Crashlytics”： AppDelegate.o中的objc-class-ref 从以下位置引用的“ _OBJC_CLASS _ $ _ RCTBridge”： AppDelegate.o中的objc-class-ref 从以下位置引用的“ _OBJC_CLASS _ $ _ RCTBundleURLProvider” AppDelegate.o中的objc-class-ref 从以下位置引用的“ _OBJC_CLASS _ $ _ RCTRootView” AppDelegate.o中的objc-class-ref ld：找不到架构x86_64的符号 clang：错误：链接器命令失败，退出代码为1（使用-v查看调用）