Error during app build: Multiple commands produce

[JustJoostNL]

I installed react-native-filament according the docs, but I receive this error:

Multiple commands produce '/Users/expo/Library/Developer/Xcode/DerivedData/MyApp-ghhktuklewzjozbubcwfbrzgmmoa/Build/Intermediates.noindex/ArchiveIntermediates/MyApp/IntermediateBuildFilesPath/UninstalledProducts/iphoneos/react_native_filament.framework/Headers/compiler.h'

    duplicate output file '/Users/expo/Library/Developer/Xcode/DerivedData/MyApp-ghhktuklewzjozbubcwfbrzgmmoa/Build/Intermediates.noindex/ArchiveIntermediates/MyApp/IntermediateBuildFilesPath/UninstalledProducts/iphoneos/react_native_filament.framework/Headers/compiler.h' on task: CpHeader /Users/expo/Library/Developer/Xcode/DerivedData/MyApp-ghhktuklewzjozbubcwfbrzgmmoa/Build/Intermediates.noindex/ArchiveIntermediates/MyApp/IntermediateBuildFilesPath/UninstalledProducts/iphoneos/react_native_filament.framework/Headers/compiler.h /Users/expo/workingdir/build/node_modules/react-native-filament/ios/libs/filament/include/math/compiler.h (in target 'react-native-filament' from project 'Pods')

Just FYI, I don't use the new architecture.

Thanks in advance for help!

[hannojg]

Are you able to provide a reproduction example? (I tested RNF in another expo app a few days ago and everything was working there)

Seems like filament and expo both have a header file called compiler.h and those are conflicting 🤔

[JustJoostNL]

I will provide a repo with an example soon 🙂

[JustJoostNL]

@hannojg https://github.com/JustJoostNL/rn-filament-example

The app fails building with the above errors from earlier.

[hannojg]

Do you get the build error on iOS or android?

[JustJoostNL]

iOS, didn't test Android yet.

[JustJoostNL]

@hannojg

I've done some more research, and I don't think the issue is on Expo's side here.

/Users/expo/workingdir/build/node_modules/react-native-filament/ios/libs/filament/include/camutils/compiler.h
/Users/expo/workingdir/build/node_modules/react-native-filament/ios/libs/filament/include/math/compiler.h

If you look at the paths, you can see that math and camutils both produce an output file with the same name.
https://github.com/margelo/react-native-filament/blob/main/package/ios/libs/filament/include/camutils/compiler.h
https://github.com/margelo/react-native-filament/blob/main/package/ios/libs/filament/include/math/compiler.h

These are the only libraries that have a compiler.h too. So I guess something has to be changed here?

[antochan]

same issue here

[JustJoostNL]

Is there any update on this? Would love to try out the library!

[Skipperlla]

Is there any progress on how it's going to be resolved?

[hannojg]

I have't had time yet to look into yet, no

[stereodenis]

I think problem is here

[Kelier]

need to fix! 📞

[Misterr-H]

hi guys, any update on this?

[JustJoostNL]

Is there anyone working on this? I believe this is a pretty important issue because it has impact on many people.

[hannojg]

I used your reproduction here:

• Error during app build: Multiple commands produce #251 (comment)

ran:

• bun i
• npx expo prebuild -p ios (waited for pod install to finish)
• xed ios
• Compiled the project in Xcode.

And it was working 🤔
How did you reproduce this? (also tried bun ios which uses the expo run ios script, and thats working as well)

[JustJoostNL]

Mmm, that's interesting. In my case, I still get the error. Is someone else able to provide another example project where it is failing?

[hannojg]

Did you run the exact same steps as I did in the comment above?

[JustJoostNL]

I've used eas build --platform ios. Also, maybe this helps: #251 (comment)?