Library not loaded: @rpath/hermes.framework/hermes on iOS

[allemanfredi]

Description

As soon as the app starts, it crashes.

Version

0.70.0

Output of npx react-native info

System:
    OS: macOS 12.5.1
    CPU: (8) x64 Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz
    Memory: 299.79 MB / 16.00 GB
    Shell: 3.2.57 - /bin/bash
  Binaries:
    Node: 16.16.0 - ~/.nvm/versions/node/v16.16.0/bin/node
    Yarn: 1.22.10 - /usr/local/bin/yarn
    npm: 8.11.0 - ~/.nvm/versions/node/v16.16.0/bin/npm
    Watchman: 2022.02.14.00 - /usr/local/bin/watchman
  Managers:
    CocoaPods: 1.11.3 - /usr/local/bin/pod
  SDKs:
    iOS SDK:
      Platforms: DriverKit 21.4, iOS 15.5, macOS 12.3, tvOS 15.4, watchOS 8.5
    Android SDK: Not Found
  IDEs:
    Android Studio: 4.1 AI-201.8743.12.41.6953283
    Xcode: 13.4.1/13F100 - /usr/bin/xcodebuild
  Languages:
    Java: 11.0.16 - /Library/Java/JavaVirtualMachines/jdk-11.0.16.jdk/Contents/Home/bin/javac
  npmPackages:
    @react-native-community/cli: 8.0.4 => 8.0.4 
    react: 18.2.0 => 18.2.0 
    react-native: 0.70.0 => 0.70.0 
    react-native-macos: Not Found
  npmGlobalPackages:
    *react-native*: Not Found

Steps to reproduce

Just launch npx react-native run-ios --simulator "iPhone 12" with hermes_enabled => true

Snack, code example, screenshot, or link to a repository

none

[ch3rn1k]

#34599 same?

[allemanfredi]

#34599 same?

it could be!

[Bayramito]

working if i disable hermes on Podfile

[allemanfredi]

working if i disable hermes on Podfile

Thanks but i would like to keep it enabled!

[niyati-tanna-tark]

I solved it by adding hermes.xcframework file to

xcode > build phases > Link binary with Libraries

just press to + sign and search for hermes

Add it and rebuild your app.

[allemanfredi]

@niyati-tanna-tark I solved by doing this.

[rafaelmaeuer]

I solved it by adding hermes.xcframework file to

xcode > build phases > Link binary with Libraries

just press to + sign and search for hermes

Add it and rebuild your app.

This works for builds with xcode, but not for cmd-builds like react-native uses: npx react-native run-ios any fix for this?

[niyati-tanna-tark]

I solved it by adding hermes.xcframework file to
xcode > build phases > Link binary with Libraries
just press to + sign and search for hermes

Add it and rebuild your app.

This works for builds with xcode, but not for cmd-builds like react-native uses: npx react-native run-ios any fix for this?

Yes in xCode you will need to Embed & Sign hermes framework and then build again using command. It will work.

[kelset]

As I commented here, based on the repro steps I don't get the error: #34612 (comment)

I'm going to close this issue unless someone can provide proper repro steps

[github-actions]

⚠️	Missing Reproducible Example
ℹ️	It looks like your issue is missing a reproducible example. Please provide a Snack or a repository that demonstrates the issue you are reporting in a minimal, complete, and reproducible manner.

[allemanfredi]

I have fixed by putting this code within Podfile after __apply_Xcode_12_5_M1_post_install_workaround(installer)

def fix_hermes()
  path = "Pods/Target Support Files/Pods-AppName/Pods-AppName-frameworks.sh"
  lines = File.readlines(path)
  lines.insert(177, 'install_framework "${PODS_XCFRAMEWORKS_BUILD_DIR}/hermes-engine/hermes.framework"'+"\n")
  File.write(path, lines.join, mode: "w")
end

[kelset]

@allemanfredi could you help me understand why that is needed/what it does? 🤔

[allemanfredi]

@kelset it adds the following code to Pods-Eidoo-frameworks

install_framework "${PODS_XCFRAMEWORKS_BUILD_DIR}/hermes-engine/hermes.framework"

[Gnative]

See #34608 for fix.

[noumantahir]

#34608

In my case app was running fine for first launch but if I close and open from launcher app was failing with same error.

Setting hermes to Embed & Sign as suggested in this comment did the trick for me. Thanks.!

[Aure77]

To fix this issue you need to use the good version of ruby (used to install cocoapods...). It will fix pod dependencies linkage during pod install command. Check .ruby-version file in your repo.
Ensure to re-run pod install + rebuild iOS after upgrade ruby.

You can run bundle install to check if you are running good version of ruby.

Please see RN 0.69 changelog:
https://reactnative.dev/blog/2022/06/21/version-069#upgrades
Ruby upgrade:
2c87b74

[kopax-polyconseil]

• We have the same error with RN0.68.5 when building iOS simulator within github action.
• We have a ruby version file and we use setup ruby action.
• We tested image macos-11 and macos-12 to do the build, tried multiple version of xcode. all your fix didn't work, we can only upgrade react-native and so far it is very painful due to the size of our application, I have opened an issue here : How to succeed React Native upgrade 0.68.5 to 0.70.6 #35588

I am out of idea that doesn't involve react-native upgrade, if you guys have any idea to share.

[hokimtam]

I solved it by adding hermes.xcframework file to

xcode > build phases > Link binary with Libraries

just press to + sign and search for hermes

Add it and rebuild your app.

Still work with react-native 0.70.10. Thank you so much.

[shubhamguptadream11]

Cause: In node_modules/react-native/sdks/hermes-engine/hermes-engine.podspec from react-native 0.70.0 minimum iOS deployment target is upgraded to 12.4 from 11.0.

Solution: So, I just upgraded my minimum iOS deployment target to 12.4 and it works.

I hope this helps someone!

[reichert621]

Updating cocoapods to the latest version solved this issue for me! (just had to run sudo gem install cocoapods and check that pod --version was 1.15.x)

[aurangs7]

The cocoapods version should be:

'cocoapods', '>= 1.13', '< 1.15'

Mentioned here: React Native Upgrade Helper