'Multiple commands produce' error when building with new Xcode build system

Hello,

Environment:

React Native Environment Info:
    System OS: macOS High Sierra 10.13.6
    Binaries:
      Node: 8.11.3 - /usr/local/bin/node
      npm: 5.6.0 - /usr/local/bin/npm
    IDEs:
      Xcode: 10 Beta 3
    npmPackages:
      react: 16.4.1
      react-native: 0.56.0

Error:

I got the following error when I try to build the simple RN 0.56 application:

warning: Skipping duplicate build file in Compile Sources build phase: <PATH_TO_PROJECT>/node_modules/react-native/React/Modules/RCTRedBoxExtraDataViewController.m (in target 'React-tvOS')
...
warning: duplicate output file '<HOME>/Library/Developer/Xcode/DerivedData/ReactNativeSimple-dpupkkuvhsslwxgngxzqgwsrazap/Build/Intermediates.noindex/ArchiveIntermediates/ReactNativeSimple/BuildProductsPath/Release-iphoneos/include/React/RCTResizeMode.h' on task: PBXCp <PATH_TO_PROJECT>/node_modules/react-native/Libraries/Image/RCTResizeMode.h <HOME>/Library/Developer/Xcode/DerivedData/ReactNativeSimple-dpupkkuvhsslwxgngxzqgwsrazap/Build/Intermediates.noindex/ArchiveIntermediates/ReactNativeSimple/BuildProductsPath/Release-iphoneos/include/React/RCTResizeMode.h (in target 'React')
...
error: Multiple commands produce '<PbxCp <HOME>/Library/Developer/Xcode/DerivedData/ReactNativeSimple-dpupkkuvhsslwxgngxzqgwsrazap/Build/Intermediates.noindex/ArchiveIntermediates/ReactNativeSimple/BuildProductsPath/Release-iphoneos/include/React/RCTScrollableProtocol.h>':
1) Target 'React-tvOS' has copy command from '<PATH_TO_PROJECT>/node_modules/react-native/React/Views/ScrollView/RCTScrollableProtocol.h' to '<HOME>/Library/Developer/Xcode/DerivedData/ReactNativeSimple-dpupkkuvhsslwxgngxzqgwsrazap/Build/Intermediates.noindex/ArchiveIntermediates/ReactNativeSimple/BuildProductsPath/Release-iphoneos/include/React/RCTScrollableProtocol.h'
2) Target 'React' has copy command from '<PATH_TO_PROJECT>/node_modules/react-native/React/Views/ScrollView/RCTScrollableProtocol.h' to '<HOME>/Library/Developer/Xcode/DerivedData/ReactNativeSimple-dpupkkuvhsslwxgngxzqgwsrazap/Build/Intermediates.noindex/ArchiveIntermediates/ReactNativeSimple/BuildProductsPath/Release-iphoneos/include/React/RCTScrollableProtocol.h'
error: Multiple commands produce '<HOME>/Library/Developer/Xcode/DerivedData/ReactNativeSimple-dpupkkuvhsslwxgngxzqgwsrazap/Build/Intermediates.noindex/ArchiveIntermediates/ReactNativeSimple/BuildProductsPath/Release-iphoneos/include/double-conversion/fast-dtoa.h':
1) Target 'double-conversion-tvOS' has copy command from '<PATH_TO_PROJECT>/node_modules/react-native/third-party/double-conversion-1.1.5/src/fast-dtoa.h' to '<HOME>/Library/Developer/Xcode/DerivedData/ReactNativeSimple-dpupkkuvhsslwxgngxzqgwsrazap/Build/Intermediates.noindex/ArchiveIntermediates/ReactNativeSimple/BuildProductsPath/Release-iphoneos/include/double-conversion/fast-dtoa.h'
2) Target 'double-conversion' has copy command from '<PATH_TO_PROJECT>/node_modules/react-native/third-party/double-conversion-1.1.5/src/fast-dtoa.h' to '<HOME>/Library/Developer/Xcode/DerivedData/ReactNativeSimple-dpupkkuvhsslwxgngxzqgwsrazap/Build/Intermediates.noindex/ArchiveIntermediates/ReactNativeSimple/BuildProductsPath/Release-iphoneos/include/double-conversion/fast-dtoa.h'
...

Repro steps:

react-native init
xcodebuild -project <PATH_TO_PROJECT>/ios/ReactNativeSimple.xcodeproj -scheme ReactNativeSimple archive -sdk iphoneos -archivePath <PATH_TO_PROJECT>/output/build/archive/ReactNativeSimple CODE_SIGN_STYLE=Automatic

Details:

I tested it on the simple RN application that was created by “react-native init” command. When I try to build the app using Xcode 10 GUI - it builds successfully. But I try to build it using xcodebuild command - it failed with the error above.

When we use the same command on the same application (RN 0.56) in Xcode 9.4.1 - it builds successfully If I don’t specify -sdk param in xcodebuild command it builds successfully. Note: Errors may be different for the different Xcode 10 Beta versions.

Questions:

Does RN 0.56 support Xcode 10 Beta? How I can fix it? Is there workaround to build it using Xcode 10 Beta?

Issue Analytics

State:
Created 5 years ago
Reactions:24
Comments:69 (11 by maintainers)

Top GitHub Comments

664reactions

ericschaalcommented, Aug 1, 2018

You can try to change the build system to Legacy, File > Workspace Settings > Build System > Legacy Build System.

502reactions

PaulMestcommented, Sep 19, 2018

I also had the Multiple commands produce error with libReact.a & libyoga.a. I’m using:

Xcode 10
react-native 0.57.0
CocoaPods

To overcome this, I have added this to my Podfile:

  post_install do |installer|
    installer.pods_project.targets.each do |target|

      # The following is needed to ensure the "archive" step works in XCode.
      # It removes React & Yoga from the Pods project, as it is already included in the main project.
      # Without this, you'd see errors when you archive like:
      # "Multiple commands produce ... libReact.a"
      # "Multiple commands produce ... libyoga.a"

      targets_to_ignore = %w(React yoga)
      
      if targets_to_ignore.include? target.name
        target.remove_from_project
      end

    end
  end

Then rebuild your Pods project with:

$ pod install

Full environment details:


  React Native Environment Info:
    System:
      OS: macOS High Sierra 10.13.6
      CPU: x64 Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz
      Memory: 4.10 GB / 32.00 GB
      Shell: 3.2.57 - /bin/bash
    Binaries:
      Node: 10.9.0 - ~/.nvm/versions/node/v10.9.0/bin/node
      Yarn: 1.9.4 - /usr/local/bin/yarn
      npm: 6.4.1 - ~/.nvm/versions/node/v10.9.0/bin/npm
      Watchman: 4.9.0 - /usr/local/bin/watchman
    SDKs:
      iOS SDK:
        Platforms: iOS 12.0, macOS 10.14, tvOS 12.0, watchOS 5.0
    IDEs:
      Xcode: 10.0/10A255 - /usr/bin/xcodebuild
    npmPackages:
      react: 16.5.0 => 16.5.0
      react-native: 0.57.0 => 0.57.0
    npmGlobalPackages:
      create-react-native-app: 1.0.0
      react-native-cli: 2.0.1