Linker command failed with exit code 1

[ZakeryFyke]

I'm having this problem both with a project using VoxImplant and with the demo app with no changes made.

Project runs fine on android, bringing it over to iOS and following the manual installation instructions, get the following error when trying to run: Linker command failed with exit code 1: Undefined Symbols for Architecture x86_64.

I tried this originally on React-Native 0.57.3, and have upgraded to 0.58.5, with the same error on both versions.

My project's scheme appears as follows, after the recommendation of some googling:

Full (very long) error code: Undefined symbols for architecture x86_64: "google::LogMessage::LogMessage(char const*, int, int)", referenced from: facebook::react::CxxNativeModule::invoke(unsigned int, folly::dynamic&&, int)::$_1::operator()() const in CxxNativeModule.o facebook::react::NativeToJsBridge::callFunction(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&&, folly::dynamic&&)::$_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::ToShortestSingle(float, 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 JSIDynamic.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 JSIExecutor.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 "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 JSIDynamic.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 JSIExecutor.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 "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::jsi::valueFromDynamic(facebook::jsi::Runtime&, folly::dynamic const&) in JSIDynamic.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 JSIDynamic.o facebook::react::JSIExecutor::callNativeModules(facebook::jsi::Value const&, bool) in JSIExecutor.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::jsi::valueFromDynamic(facebook::jsi::Runtime&, folly::dynamic const&) in JSIDynamic.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 JSIDynamic.o ... "google::LogMessage::~LogMessage()", referenced from: facebook::react::CxxNativeModule::invoke(unsigned int, folly::dynamic&&, int)::$_1::operator()() const in CxxNativeModule.o facebook::react::NativeToJsBridge::callFunction(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&&, folly::dynamic&&)::$_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::jsi::valueFromDynamic(facebook::jsi::Runtime&, folly::dynamic const&) in JSIDynamic.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 JSIDynamic.o facebook::react::JSIExecutor::callNativeModules(facebook::jsi::Value const&, bool) in JSIExecutor.o ... ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

[YuliaGrigorieva]

Hello!

Please try this solution: https://github.com/facebook/react-native/issues/23390#issuecomment-463157141

Best regards, Yulia Grigorieva

[ozanmanav]

I was getting an error like that. It was then solved after adding Double Conversion and Glog to the React project within the Pods folder as @YuliaGrigorieva said. And here you can try changing the build type of xcode to legacy.

[ZakeryFyke]

I'm afraid I'm not super familiar with Xcode (I've used a mac for a combined total of like 20 hours in my life), how do I bring up the screen to link with binary libraries for a framework? I only see the option to do that to my main project, which looks like the following:

[YuliaGrigorieva]

Hello!

You need to add these dependencies to React target. Please take a look at the screenshot, I have highlighted everything you need to click:

Best regards, Yulia Grigorieva

[ZakeryFyke]

Ahh, I see now, I had one of the panes collapsed and couldn't see the target selection.

I can confirm this has worked for me! Project is building finally 🕺 Thanks so much!