Can't build in Release scheme (Undefined symbols for architecture arm64)

[martinezguillaume]

Environment

System:
    OS: macOS 10.15.4
    CPU: (4) x64 Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
    Memory: 197.82 MB / 8.00 GB
    Shell: 5.7.1 - /bin/zsh
  Binaries:
    Node: 12.16.1 - ~/.nvm/versions/node/v12.16.1/bin/node
    Yarn: 1.22.4 - /usr/local/bin/yarn
    npm: 6.13.4 - ~/.nvm/versions/node/v12.16.1/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  Managers:
    CocoaPods: 1.9.1 - /usr/local/bin/pod
  SDKs:
    iOS SDK:
      Platforms: iOS 13.4, DriverKit 19.0, macOS 10.15, tvOS 13.4, watchOS 6.2
    Android SDK: Not Found
  IDEs:
    Android Studio: 3.6 AI-192.7142.36.36.6308749
    Xcode: 11.4/11E146 - /usr/bin/xcodebuild
  Languages:
    Java: javac 14 - /usr/bin/javac
    Python: 2.7.16 - /usr/bin/python
  npmPackages:
    @react-native-community/cli: Not Found
    react: 16.11.0 => 16.11.0 
    react-native: 0.62.0 => 0.62.0 
  npmGlobalPackages:
    *react-native*: Not Found

Flipper Pods version

0.37.0

Xcode config

Target Release :

...
CLANG_ENABLE_MODULES = YES;
ENABLE_BITCODE = YES;
GCC_PREPROCESSOR_DEFINITIONS = (
	"$(inherited)",
	"COCOAPODS=1",
	"FB_SONARKIT_ENABLED=1",
);
LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
OTHER_CFLAGS = (
	"$(inherited)",
	"-fmodule-map-file=\"${PODS_CONFIGURATION_BUILD_DIR}/YogaKit/YogaKit.modulemap\"",
	"-fmodule-map-file=\"${PODS_ROOT}/Headers/Public/yoga/Yoga.modulemap\"",
	"-DFB_SONARKIT_ENABLED=1",
);
OTHER_LDFLAGS = (
	"-ObjC",
	"-lc++",
	"$(inherited)",
);
SWIFT_OBJC_BRIDGING_HEADER = "Milinus-Bridging-Header.h";
SWIFT_VERSION = 5.0;

Release Project :

...
CLANG_ENABLE_MODULES = YES;
LD_RUNPATH_SEARCH_PATHS = "/usr/lib/swift $(inherited)";
LIBRARY_SEARCH_PATHS = (
	"\"$(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME)\"",
	"\"$(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)\"",
	"\"$(inherited)\"",
);
OTHER_CFLAGS = "";
SWIFT_COMPILATION_MODE = wholemodule;

Upgrading version

From 0.61.5 to 0.62.0

Description

If I build with Release scheme (to generic iOS device or actual device), I get this error :

Undefined symbols for architecture arm64:
  "_OBJC_CLASS_$_FlipperClient", referenced from:
      objc-class-ref in libreact-native-flipper.a(FlipperReactNativeJavaScriptPluginManager.o)
ld: symbol(s) not found for architecture arm64

Reproducible demo

• Change scheme from Debug to Release in build configuration
• Build with Xcode

[matt-oakes]

The error seems to be due to Flipper, which shouldn't be included in release builds. Can you send over your Podfile so we can confirm how that is setup?

Also, do you have any custom schemes for "staging" and "production", or are you using the defaults?

[martinezguillaume]

Hello !
My Podfile look like this :

def add_flipper_pods!
  version = '~> 0.37.0'
  pod 'FlipperKit', version, :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitLayoutPlugin', version, :configuration => 'Debug'
  pod 'FlipperKit/SKIOSNetworkPlugin', version, :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitUserDefaultsPlugin', version, :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitReactPlugin', version, :configuration => 'Debug'
end
# Post Install processing for Flipper
def flipper_post_install(installer)
  installer.pods_project.targets.each do |target|
    if target.name == 'YogaKit'
      target.build_configurations.each do |config|
        config.build_settings['SWIFT_VERSION'] = '4.1'
      end
    end
  end
end

target 'AppName' do
...
  add_flipper_pods!
  post_install do |installer|
    flipper_post_install(installer)
  end
end

I don't have any custom scheme, I'm using the defaults (Debug & Release)
Is it related to this issue ?

[martinezguillaume]

I tried to not include Flipper in Release scheme with the help of this issue and the latest Podfile version from react-native repo.

My Podfile now looks like this :

platform :ios, '10.0'
require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'
require_relative '../node_modules/react-native-unimodules/cocoapods.rb'

def use_flipper!(versions = {})
  versions['Flipper'] ||= '~> 0.37.0'
  versions['DoubleConversion'] ||= '1.1.7'
  versions['Flipper-Folly'] ||= '~> 2.2'
  versions['Flipper-Glog'] ||= '0.3.6'
  versions['Flipper-PeerTalk'] ||= '~> 0.0.4'
  versions['Flipper-RSocket'] ||= '~> 1.1'
  pod 'FlipperKit', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitLayoutPlugin', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/SKIOSNetworkPlugin', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitUserDefaultsPlugin', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitReactPlugin', versions['Flipper'], :configuration => 'Debug'
  # List all transitive dependencies for FlipperKit pods
  # to avoid them being linked in Release builds
  pod 'Flipper', versions['Flipper'], :configuration => 'Debug'
  pod 'Flipper-DoubleConversion', versions['DoubleConversion'], :configuration => 'Debug'
  pod 'Flipper-Folly', versions['Flipper-Folly'], :configuration => 'Debug'
  pod 'Flipper-Glog', versions['Flipper-Glog'], :configuration => 'Debug'
  pod 'Flipper-PeerTalk', versions['Flipper-PeerTalk'], :configuration => 'Debug'
  pod 'Flipper-RSocket', versions['Flipper-RSocket'], :configuration => 'Debug'
  pod 'FlipperKit/Core', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/CppBridge', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FBCxxFollyDynamicConvert', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FBDefines', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FKPortForwarding', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitHighlightOverlay', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitLayoutTextSearchable', versions['Flipper'], :configuration => 'Debug'
  pod 'FlipperKit/FlipperKitNetworkPlugin', versions['Flipper'], :configuration => 'Debug'
end

# Post Install processing for Flipper
def flipper_post_install(installer)
  installer.pods_project.targets.each do |target|
    if target.name == 'YogaKit'
      target.build_configurations.each do |config|
        config.build_settings['SWIFT_VERSION'] = '4.1'
      end
    end
  end
  file_name = Dir.glob("*.xcodeproj")[0]
  app_project = Xcodeproj::Project.open(file_name)
  app_project.native_targets.each do |target|
    target.build_configurations.each do |config|
      cflags = config.build_settings['OTHER_CFLAGS'] || '$(inherited) '
      unless cflags.include? '-DFB_SONARKIT_ENABLED=1'
        puts 'Adding -DFB_SONARKIT_ENABLED=1 in OTHER_CFLAGS...'
        cflags << '-DFB_SONARKIT_ENABLED=1'
      end
      config.build_settings['OTHER_CFLAGS'] = cflags
      if (config.build_settings['OTHER_SWIFT_FLAGS'])
        unless config.build_settings['OTHER_SWIFT_FLAGS'].include? '-DFB_SONARKIT_ENABLED'
          puts 'Adding -DFB_SONARKIT_ENABLED ...'
          swift_flags = config.build_settings['OTHER_SWIFT_FLAGS']
          if swift_flags.split.last != '-Xcc'
            config.build_settings['OTHER_SWIFT_FLAGS'] << ' -Xcc'
          end
          config.build_settings['OTHER_SWIFT_FLAGS'] << ' -DFB_SONARKIT_ENABLED'
        end
      else
        puts 'OTHER_SWIFT_FLAGS does not exist thus assigning it to `$(inherited) -Xcc -DFB_SONARKIT_ENABLED`'
        config.build_settings['OTHER_SWIFT_FLAGS'] = '$(inherited) -Xcc -DFB_SONARKIT_ENABLED'
      end
      app_project.save
    end
  end
  installer.pods_project.save
end

target 'AppName' do
  ...
  use_native_modules!
  use_unimodules!

  # Enables Flipper.
  use_flipper!
  post_install do |installer|
    flipper_post_install(installer)
  end
end

The pod install works great and add few lines in the project.pbxproj (dfbsonarkit stuff), but I have always the same error unfortunately... 😭

My AppDelegate.m file looks like this :

...
#if DEBUG
#import <FlipperKit/FlipperClient.h>
#import <FlipperKitLayoutPlugin/FlipperKitLayoutPlugin.h>
#import <FlipperKitUserDefaultsPlugin/FKUserDefaultsPlugin.h>
#import <FlipperKitNetworkPlugin/FlipperKitNetworkPlugin.h>
#import <SKIOSNetworkPlugin/SKIOSNetworkAdapter.h>
#import <FlipperKitReactPlugin/FlipperKitReactPlugin.h>

static void InitializeFlipper(UIApplication *application) {
  FlipperClient *client = [FlipperClient sharedClient];
  SKDescriptorMapper *layoutDescriptorMapper = [[SKDescriptorMapper alloc] initWithDefaults];
  [client addPlugin:[[FlipperKitLayoutPlugin alloc] initWithRootNode:application withDescriptorMapper:layoutDescriptorMapper]];
  [client addPlugin:[[FKUserDefaultsPlugin alloc] initWithSuiteName:nil]];
  [client addPlugin:[FlipperKitReactPlugin new]];
  [client addPlugin:[[FlipperKitNetworkPlugin alloc] initWithNetworkAdapter:[SKIOSNetworkAdapter new]]];
  [client start];
}
#endif

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  #if DEBUG
    InitializeFlipper(application);
  #endif
...

The full Xcode error is :

Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_FlipperClient", referenced from:
      objc-class-ref in libreact-native-flipper.a(FlipperReactNativeJavaScriptPluginManager.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

[martinezguillaume]

It's a duplicate from this issue, I followed this comment and now, everything is working ! I'm closing this now