Question

我在ios项目中遇到了问题。在Xcode clang中找不到架构x86_64的符号：错误：链接器命令失败，退出代码为1（使用-v查看调用）。我多次对我的xcode和project文件夹进行核对，以解决此问题。我被卡住了。有任何想法吗？日志如下。我正在尝试在Xcode 10上运行模拟器。

  Undefined symbols for architecture x86_64:
    "google::LogMessage::LogMessage(char const*, int, int)", referenced from:
        facebook::react::CxxNativeModule::invoke(unsigned int, folly::dynamic&&, int)::$_1::operator()() const in CxxNativeModule.o
        facebook::react::JSException::buildMessage(OpaqueJSContext const*, OpaqueJSValue const*, OpaqueJSString*, char const*) in JSCHelpers.o
        facebook::react::NativeToJsBridge::callFunction(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&&, folly::dynamic&&)::$_1::operator()(facebook::react::JSExecutor*) const in NativeToJsBridge.o
        facebook::react::NativeToJsBridge::invokeCallback(double, folly::dynamic&&)::$_2::operator()(facebook::react::JSExecutor*) const in NativeToJsBridge.o
    "double_conversion::DoubleToStringConverter::ToShortestIeeeNumber(double, double_conversion::StringBuilder*, double_conversion::DoubleToStringConverter::DtoaMode) const", referenced from:
        double_conversion::DoubleToStringConverter::ToShortest(double, double_conversion::StringBuilder*) const in CxxNativeModule.o
    "double_conversion::DoubleToStringConverter::ToFixed(double, int, double_conversion::StringBuilder*) const", referenced from:
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in CxxNativeModule.o
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in JSCExecutor.o
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in MethodCall.o
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in Value.o
    "double_conversion::DoubleToStringConverter::ToPrecision(double, int, double_conversion::StringBuilder*) const", referenced from:
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in CxxNativeModule.o
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in JSCExecutor.o
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in MethodCall.o
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in Value.o
    "google::LogMessageFatal::LogMessageFatal(char const*, int)", referenced from:
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in CxxNativeModule.o
        facebook::react::Instance::initializeBridge(std::__1::unique_ptr<facebook::react::InstanceCallback, std::__1::default_delete<facebook::react::InstanceCallback> >, std::__1::shared_ptr<facebook::react::JSExecutorFactory>, std::__1::shared_ptr<facebook::react::MessageQueueThread>, std::__1::shared_ptr<facebook::react::ModuleRegistry>) in Instance.o
        facebook::react::JSBigFileString::fromPath(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)::$_0::operator()() const in JSBigString.o
        facebook::react::JSBigFileString::c_str() const in JSBigString.o
        facebook::react::JSCExecutor::~JSCExecutor() in JSCExecutor.o
        facebook::react::JSCExecutor::callNativeModules(facebook::react::Value&&) in JSCExecutor.o
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in JSCExecutor.o
        ...
    "google::LogMessage::stream()", referenced from:
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in CxxNativeModule.o
        facebook::react::CxxNativeModule::invoke(unsigned int, folly::dynamic&&, int)::$_1::operator()() const in CxxNativeModule.o
        facebook::react::Instance::initializeBridge(std::__1::unique_ptr<facebook::react::InstanceCallback, std::__1::default_delete<facebook::react::InstanceCallback> >, std::__1::shared_ptr<facebook::react::JSExecutorFactory>, std::__1::shared_ptr<facebook::react::MessageQueueThread>, std::__1::shared_ptr<facebook::react::ModuleRegistry>) in Instance.o
        facebook::react::JSBigFileString::fromPath(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)::$_0::operator()() const in JSBigString.o
        facebook::react::JSBigFileString::c_str() const in JSBigString.o
        facebook::react::JSCExecutor::~JSCExecutor() in JSCExecutor.o
        facebook::react::JSCExecutor::callNativeModules(facebook::react::Value&&) in JSCExecutor.o
        ...
    "google::LogMessage::~LogMessage()", referenced from:
        facebook::react::CxxNativeModule::invoke(unsigned int, folly::dynamic&&, int)::$_1::operator()() const in CxxNativeModule.o
        facebook::react::JSException::buildMessage(OpaqueJSContext const*, OpaqueJSValue const*, OpaqueJSString*, char const*) in JSCHelpers.o
        facebook::react::NativeToJsBridge::callFunction(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&&, folly::dynamic&&)::$_1::operator()(facebook::react::JSExecutor*) const in NativeToJsBridge.o
        facebook::react::NativeToJsBridge::invokeCallback(double, folly::dynamic&&)::$_2::operator()(facebook::react::JSExecutor*) const in NativeToJsBridge.o
    "google::LogMessageFatal::~LogMessageFatal()", referenced from:
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in CxxNativeModule.o
        facebook::react::Instance::initializeBridge(std::__1::unique_ptr<facebook::react::InstanceCallback, std::__1::default_delete<facebook::react::InstanceCallback> >, std::__1::shared_ptr<facebook::react::JSExecutorFactory>, std::__1::shared_ptr<facebook::react::MessageQueueThread>, std::__1::shared_ptr<facebook::react::ModuleRegistry>) in Instance.o
        facebook::react::JSBigFileString::fromPath(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)::$_0::operator()() const in JSBigString.o
        facebook::react::JSBigFileString::c_str() const in JSBigString.o
        facebook::react::JSCExecutor::~JSCExecutor() in JSCExecutor.o
        facebook::react::JSCExecutor::callNativeModules(facebook::react::Value&&) in JSCExecutor.o
        std::__1::enable_if<(std::is_floating_point<double>::value) && (IsSomeString<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >::value), void>::type folly::toAppend<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, double>(double, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, double_conversion::DoubleToStringConverter::DtoaMode, unsigned int) in JSCExecutor.o
        ...
  ld: symbol(s) not found for architecture x86_64
  clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

在React.pod中查看您的需求更改

ss.compiler_flags       = folly_compiler_flags

到

ss.dependency             "DoubleConversion"
ss.dependency             "GLog"
ss.compiler_flags       = folly_compiler_flags

3部分

ps：GLog或glog

Answer 2

在pods内部，在target下，单击React，然后构建阶段>将Binary与库链接，添加DoubleConversion.Framework和glog.framework和Folly.framework。每当您进行Pod更新时，请确保将其添加到react依赖项下，然后运行。

Answer 3

我在2月12日也面临着同样的问题。因此，我在Github上针对此问题打开了一个问题。

有解决此问题的方法。

在@CocoaPods项目中手动添加DoubleConversion和glog以将Binary与React框架目标库链接起来。

此问题已在RN 0.58.4中修复

在Xcode 10中找不到架构x86_64的符号（错误）

3 个答案: