Expected.h:1587:10: 'folly/coro/Coroutine.h' file not found

[ramanguptazelhus]

Description

This appears to be caused by Folly referencing folly/coro/Coroutine.h, which no longer exists in the bundled Folly version.
Disabling the New Architecture (:new_arch_enabled => false) allows the project to build successfully, which suggests it’s related to Folly integration in the new architecture.
/Users//Library/Developer/Xcode/DerivedData//Build/Products/Debug-iphonesimulator/RCT-Folly/folly.framework/Headers/folly/Expected.h:1587:10: 'folly/coro/Coroutine.h' file not found

Steps to reproduce

1. Run cd ios && pod install.
2. Open the project in Xcode 16+ and build for iOS simulator.
3. Observe build failure: 'folly/coro/Coroutine.h' file not found

React Native Version

0.81.0

Affected Platforms

Runtime - iOS

Output of npx @react-native-community/cli info

info Fetching system and libraries information...
System:
  OS: macOS 14.7.6
  CPU: (4) x64 Intel(R) Core(TM) i5-8210Y CPU @ 1.60GHz
  Memory: 193.15 MB / 16.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 22.18.0
    path: ~/.nvm/versions/node/v22.18.0/bin/node
  Yarn:
    version: 1.22.22
    path: /usr/local/bin/yarn
  npm:
    version: 10.9.3
    path: ~/.nvm/versions/node/v22.18.0/bin/npm
  Watchman:
    version: 2024.01.22.00
    path: /usr/local/bin/watchman
Managers:
  CocoaPods:
    version: 1.16.2
    path: /Users/ramangupta/.rvm/gems/ruby-3.2.2/bin/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 24.1
      - iOS 18.1
      - macOS 15.1
      - tvOS 18.1
      - visionOS 2.1
      - watchOS 11.1
  Android SDK: Not Found
IDEs:
  Android Studio: Not Found
  Xcode:
    version: 16.1/16B40
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 18.0.2.1
    path: /usr/bin/javac
  Ruby:
    version: 3.2.2
    path: /Users/ramangupta/.rvm/rubies/ruby-3.2.2/bin/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 20.0.0
    wanted: ^20.0.1
  react:
    installed: 19.1.0
    wanted: 19.1.0
  react-native:
    installed: 0.81.0
    wanted: 0.81.0
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: true
  newArchEnabled: true

info React Native v0.81.1 is now available (your project is running on v0.81.0).
info Changelog: https://github.com/facebook/react-native/releases/tag/v0.81.1
info Diff: https://react-native-community.github.io/upgrade-helper/?from=0.81.0&to=0.81.1
info For more info, check out "https://reactnative.dev/docs/upgrading?os=macos".

Stacktrace or Logs

'folly/coro/Coroutine.h' file not found

Showing Recent Errors Only
/Users/ramangupta/Desktop/fozzy/ios/App/AppDelegate.mm:1:9: in file included from /Users/ramangupta/Desktop/fozzy/ios/App/AppDelegate.mm:1:


Showing Recent Errors Only
/Users/ramangupta/Desktop/fozzy/ios/App/AppDelegate.h:1:9: in file included from /Users/ramangupta/Desktop/fozzy/ios/App/AppDelegate.h:1:


Showing Recent Errors Only
/Users/ramangupta/Desktop/fozzy/node_modules/react-native/Libraries/AppDelegate/RCTAppDelegate.h:11:9: in file included from /Users/ramangupta/Library/Developer/Xcode/DerivedData/App-hbaeadqpbosinicdefgchhpmmfdz/Build/Products/Debug-iphonesimulator/React-RCTAppDelegate/React_RCTAppDelegate.framework/Headers/RCTAppDelegate.h:11:


Showing Recent Errors Only
/Users/ramangupta/Desktop/fozzy/node_modules/react-native/Libraries/AppDelegate/RCTDefaultReactNativeFactoryDelegate.h:9:9: in file included from /Users/ramangupta/Library/Developer/Xcode/DerivedData/App-hbaeadqpbosinicdefgchhpmmfdz/Build/Products/Debug-iphonesimulator/React-RCTAppDelegate/React_RCTAppDelegate.framework/Headers/RCTDefaultReactNativeFactoryDelegate.h:9:


Showing Recent Errors Only
/Users/ramangupta/Desktop/fozzy/node_modules/react-native/Libraries/AppDelegate/RCTReactNativeFactory.h:18:9: in file included from /Users/ramangupta/Library/Developer/Xcode/DerivedData/App-hbaeadqpbosinicdefgchhpmmfdz/Build/Products/Debug-iphonesimulator/React-RCTAppDelegate/React_RCTAppDelegate.framework/Headers/RCTReactNativeFactory.h:18:


Showing Recent Errors Only
/Users/ramangupta/Desktop/fozzy/node_modules/react-native/React/Fabric/Mounting/RCTComponentViewFactory.h:10:9: in file included from /Users/ramangupta/Library/Developer/Xcode/DerivedData/App-hbaeadqpbosinicdefgchhpmmfdz/Build/Products/Debug-iphonesimulator/React-RCTFabric/RCTFabric.framework/Headers/React/RCTComponentViewFactory.h:10:

MANDATORY Reproducer

npx react-native@0.81.0 init FollyBugTest cd FollyBugTest/ios pod install cd .. npx react-native run-ios

Screenshots and Videos

No response

[react-native-bot]

Warning

Missing reproducer: We could not detect a reproducible example in your issue report. Reproducers are mandatory and we can accept only one of those as a valid reproducer:

• For majority of bugs: send us a Pull Request with the RNTesterPlayground.js edited to reproduce your bug.
• If your bug is UI related: a Snack
• If your bug is build/upgrade related: a project using our Reproducer Template

You can read more about about it on our website: How to report a bug.

[cortinico]

npx react-native@0.81.0 init FollyBugTest cd FollyBugTest/ios pod install cd .. npx react-native run-ios

Cannot reproduce on my machine.
Reproducers are mandatory on the React Native issue tracker.

Please provide a repo using this template:
https://github.com/react-native-community/reproducer-react-native
and make the iOS CI fail as you're reporting in this issue.

Once you have a repo with the failure, please comment here or open a new issue.

[RomuloDevelop]

Having the same issue with react native reanimated 3.19.0 and react native 0.81.4

[naseerahmedaziz]

same issue on "react-native-reanimated": "^3.15.0"

[RiteshMakan]

same issue with "react-native-reanimated": "^4.1.2" which requires the the New Architecture (:new_arch_enabled => true)

[chandan1505]

For me while digging for the issue I found that I missed to add the following two flags in my .pbxproj file while upgrading react-native, this is under the buildSettings -> OTHER_CPLUSPLUSFLAGS
"-DFOLLY_CFG_NO_COROUTINES=1",
"-DFOLLY_HAVE_CLOCK_GETTIME=1",
After adding these I was able to successfully build for Ios

[zhaojzn]

what worked for me was making sure all my things were updated and compatible

npx expo start:ios


CommandError: Failed to build iOS project. "xcodebuild" exited with error code 65.

› Compiling react-native-reanimated Pods/RNReanimated » WorkletsModuleProxy.cpp

❌  (ios/Pods/Headers/Public/ReactNativeDependencies/folly/Expected.h:1587:10)

  1585 | // Inspired by https://github.com/toby-allsopp/coroutine_monad
  1586 | #if FOLLY_HAS_COROUTINES
> 1587 | #include <folly/coro/Coroutine.h>
       |          ^ 'folly/coro/Coroutine.h' file not found
  1588 | 
  1589 | namespace folly {
  1590 | namespace expected_detail {

After running npx expo install --fix

The following packages should be updated for best compatibility with the installed expo version:
  expo@54.0.10 - expected version: 54.0.12
  expo-image@3.0.8 - expected version: ~3.0.9
  expo-router@6.0.8 - expected version: ~6.0.10
  expo-web-browser@15.0.7 - expected version: ~15.0.8
  react-native-reanimated@3.17.5 - expected version: ~4.1.1
  react-native-safe-area-context@5.4.0 - expected version: ~5.6.0
Your project may not work correctly until you install the expected versions of the packages.
› Installing 6 SDK 54.0.0 compatible native modules using npm
> npm install

Delete the ios folder you had before and run the command again and it worked for me.

[sujathasperi2022]

Still facing the issue

[Crdksnn]

npx expo install --fix

Thats worked