React-native: React-native v0.56.0 links to not released Folly 2016.10.31.00

[jerolimov]

I'm so happy about any new RN release, so i tested the new version you just released a few minutes ago. 😏

Thanks for pushing RN forward! 👍

But after upgrading my project (which uses CocoaPods) to react-native 0.56.0 and can not run pod install anymore, because the linked Folly version is not published in the CocoaPods repo.

• [x] Review the documentation: https://facebook.github.io/react-native
• [x] Search for existing issues: https://github.com/facebook/react-native/issues
• [x] Use the latest React Native release: https://github.com/facebook/react-native/releases

Environment

Run react-native info in your terminal and paste its contents here.

  React Native Environment Info:
    System:
      OS: macOS High Sierra 10.13.5
      CPU: x64 Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz
      Memory: 24.26 MB / 16.00 GB
      Shell: 5.3 - /bin/zsh
    Binaries:
      Node: 10.1.0 - ~/.nvm/versions/node/v10.1.0/bin/node
      Yarn: 1.7.0 - /usr/local/bin/yarn
      npm: 5.10.0 - ~/.nvm/versions/node/v10.1.0/bin/npm
      Watchman: 4.9.0 - /usr/local/bin/watchman
    SDKs:
      iOS SDK:
        Platforms: iOS 11.4, macOS 10.13, tvOS 11.4, watchOS 4.3
      Android SDK:
        Build Tools: 23.0.1, 23.0.3, 25.0.0, 25.0.2, 25.0.3, 26.0.1, 26.0.2, 27.0.2, 27.0.3
        API Levels: 23, 25, 26, 27
    IDEs:
      Android Studio: 3.0 AI-171.4443003
      Xcode: 9.4.1/9F2000 - /usr/bin/xcodebuild
    npmPackages:
      react: 16.4.1 => 16.4.1 
      react-native: 0.56.0 => 0.56.0 

Description

When using the new version with CocoaPods it links to Folly version 2016.10.31.00:

https://github.com/facebook/react-native/blob/master/React.podspec#L16

I get this error when running pod install

[!] CocoaPods could not find compatible versions for pod "Folly":
  In snapshot (Podfile.lock):
    Folly (= 2016.09.26.00)

  In Podfile:
    React/CxxBridge (from `../node_modules/react-native`) was resolved to 0.56.0, which depends on
      Folly (= 2016.10.31.00)

Specs satisfying the `Folly (= 2016.09.26.00), Folly (= 2016.10.31.00)` dependency were found, but they required a higher minimum deployment target.

This happens also after running pod repo update.

pod search Folly returns:

-> Folly (2016.09.26.00)
   An open-source C++ library developed and used at Facebook.
   pod 'Folly', '~> 2016.09.26.00'
   - Homepage: https://github.com/facebook/folly
   - Source:   https://github.com/facebook/folly.git
   - Versions: 2016.09.26.00 [master repo]

See also https://github.com/CocoaPods/Specs/tree/master/Specs/f/6/1/Folly

Reproducible Demo

My Podfile in the ios folder:

source 'https://github.com/CocoaPods/Specs.git'

platform :ios, '9.0'

def react_pods
  # Yoga
  pod 'yoga', :path => '../node_modules/react-native/ReactCommon/yoga'

  # React
  pod 'React', :path => '../node_modules/react-native', :subspecs => [
    'Core',
    'CxxBridge',
    'DevSupport',
    'RCTBlob',
    'RCTImage',
    'RCTNetwork',
    'RCTLinkingIOS',
    'RCTSettings',
    'RCTText',
    'RCTWebSocket',
    'RCTAnimation',
    'RCTPushNotification',
    'RCTActionSheet',
    'RCTGeolocation',
    # From https://github.com/facebook/react-native/issues/17027
    # If we do not need this to build successfully, we can remove this.
    'tvOS',
  ]

  # more dependencies...
end

target 'MY_APP_TARGET' do
  react_pods
end

#target 'MY_APP_SECOND_TARGET' do
#  react_pods
#end

# From https://github.com/facebook/react-native/issues/17274#issuecomment-356363557
post_install do |installer|
  installer.pods_project.targets.each do |target|
    if target.name == 'yoga'
      target.build_configurations.each do |config|
        config.build_settings['GCC_WARN_64_TO_32_BIT_CONVERSION'] = 'NO'
      end
    end

    if target.name == 'React'
      target.remove_from_project
    end
  end
end

[ikesyo]

You'll need these lines in your Podfile as described in https://facebook.github.io/react-native/docs/integration-with-existing-apps.html:

  # Third party deps podspec link
  pod 'DoubleConversion', :podspec => '../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec'
  pod 'glog', :podspec => '../node_modules/react-native/third-party-podspecs/glog.podspec'
  pod 'Folly', :podspec => '../node_modules/react-native/third-party-podspecs/Folly.podspec'

[jerolimov]

Oh, thank you for that hint. Will test it now...

edit: That helps me. Thank you! 👍

[gianpaj]

@jerolimov did that work for you?

I added those lines to the Podfile and update the pod repo but i'm still getting:

[!] CocoaPods could not find compatible versions for pod "Folly":
  In snapshot (Podfile.lock):
    Folly (= 2016.09.26.00)

  In Podfile:
    Folly (from `../node_modules/react-native/third-party-podspecs/Folly.podspec`)

None of your spec sources contain a spec satisfying the dependencies: `Folly (from `../node_modules/react-native/third-party-podspecs/Folly.podspec`), Folly (= 2016.09.26.00)`.

You have either:
 * mistyped the name or version.
 * not added the source repo that hosts the Podspec to your Podfile.

Note: as of CocoaPods 1.0, `pod repo update` does not happen on `pod install` by default.

[jerolimov]

@gianpaj Yes this help me. I temporary removed the Podfile.lock file and run pod install because of this snapshot mismatch problem.

After that the Podfile.lock was generated again and looks similar and everything is working again.

[gianpaj]

@jerolimov deleting the lock file worked! 🎉 thanks a lot 😃

[arielpollack]

Removing the whole Podfile.lock file is not recommended.
It contains the references to the current versions of Pods your project use.
If your Podfile doesn't specify a specific version for each Pod, deleting the Podfile.lock will install the latest version for each pod which can break your build or cause other issues you may not notice.

I recommend deleting the specific lines in the Podfile.lock that related to Folly or any other pod that fail to install.