[iOS] Inconsistent Podfile.lock checksums for ReactNativeDependencies and React-Core-prebuilt across machines and directories
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Description
Description
With RCT_USE_PREBUILT_RNCORE and RCT_USE_RN_DEP enabled, pod install will produce different result on the same machine depending on project directory (and on different machines, likely for the same reason).
https://github.com/facebook/react-native/issues/54891 is related (regarding hermes engine).
Steps to reproduce
Follow instructions in reproducer:
clone the repository and run pod install - note changes in Podfile.lock:
git clone git@github.com:mlisikbf/RNDepsPodfileLock.git
cd RNDepsPodfileLock
npm i && (cd ios; pod install; cd -)
git diff
pull another clone into a different dir - note changes in Podfile.lock do not match the other clone:
git clone git@github.com:mlisikbf/RNDepsPodfileLock.git RNDepsPodfileLock2
cd RNDepsPodfileLock2
npm i && (cd ios; pod install; cd -)
git diff
the reproducer was created with npx @react-native-community/cli@latest init --version 0.84.0-rc.4, the only change is in Podfile:
ENV['RCT_USE_RN_DEP'] = '1'
ENV['RCT_USE_PREBUILT_RNCORE'] = '1'
React Native Version
0.83.1; 0.84-rc.4
Affected Platforms
Build - MacOS
Output of npx @react-native-community/cli info
System:
OS: macOS 26.2
CPU: (11) arm64 Apple M3 Pro
Memory: 219.42 MB / 18.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 22.14.0
path: /Users/mlisik/.nvm/versions/node/v22.14.0/bin/node
Yarn:
version: 1.22.22
path: /Users/mlisik/.nvm/versions/node/v22.14.0/bin/yarn
npm:
version: 11.7.0
path: /Users/mlisik/.nvm/versions/node/v22.14.0/bin/npm
Watchman:
version: 2025.04.14.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.16.2
path: /Users/mlisik/.rbenv/shims/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 25.2
- iOS 26.2
- macOS 26.2
- tvOS 26.2
- visionOS 26.2
- watchOS 26.2
Android SDK: Not Found
IDEs:
Android Studio: 2025.2 AI-252.28238.7.2523.14688667
Xcode:
version: 26.2/17C52
path: /usr/bin/xcodebuild
Languages:
Java:
version: 17.0.16
path: /usr/bin/javac
Ruby:
version: 2.6.10
path: /Users/mlisik/.rbenv/shims/ruby
npmPackages:
"@react-native-community/cli":
installed: 20.1.0
wanted: 20.1.0
react:
installed: 19.2.3
wanted: 19.2.3
react-native:
installed: 0.84.0-rc.4
wanted: 0.84.0-rc.4
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: true
newArchEnabled: true
Stacktrace or Logs
N/A
MANDATORY Reproducer
https://github.com/mlisikbf/RNDepsPodfileLock
Screenshots and Videos
https://github.com/user-attachments/assets/c1c8bf5a-3188-429e-ac70-ef49bd2441d0
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the Podfile changes in the RNDepsPodfileLock reproducer and inspect the generated Podfile.lock entries for ReactNativeDependencies and React-Core-prebuilt. Run pod install in two clones at different paths and compare the resulting checksums. Done means identical Podfile.lock checksums across directories and machines.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- ios, react-native, ruby
- Domain
- build-system, mobile
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100