Do I also need to add React/React Native dependencies?

[monceeef]

Summary

I'm integrating Rock into an existing native iOS app that has never used React Native before. The docs show how to add the Rock bundle/xcframework and run rock start, but it's unclear whether the host app must also include React/React Native frameworks. The output of rock package:ios is hermes / and ReactBrownfield.

But when adding these in the app I get errors about undefined symbol: RCTReactNativeFactory / RCTIsNewArchEnabled and so on.

Is there a step I might have missed? Or is not documented? Currently using the latest version of rock.

[thymikee]

How do you use packaged RN app in your iOS app? Everything is exposed through ReactBrownfield and YourProjectReact scheme. You’re not expected to add RN’s own dependencies. Please check the instructions once again and let me know anything that’s unclear

[monceeef]

Hi @thymikee I've ran a new iOS app and a new rock app and dragged both the packages generated from package:ios with config debug and release to the iOS app. I''m getting the following error.
Anything I should add ?

[thymikee]

You should have 3 frameworks to drag:

• TestXReact.xcframework
• hermes.xcframework
• ReactBrownfield.xcframework

[monceeef]

Dragged them 3 indeed.
Is there something else I should add?

[thymikee]

This looks right. Can you share the repro maybe?

[monceeef]

@thymikee https://github.com/monceeef/brownfield-exp I've pushed the code over here, Thanks for the help, I'm not very familiar with Swift and XCode so not sure what I've missed in the process

[thymikee]

I wonder what's your use case if you're not familiar with Xcode? Brownfield scenario is for native apps that have native developers.

[monceeef]

I’m not a full-time iOS dev. But I followed docs step by step and pushed a clean repro repo. If something extra is required, it’s not in the docs, that’s the gap I’m trying to surface.

[thymikee]

Yeah, appreciate it! Just curios about the use case, and why going brownfield if you can go greenfield :)

[monceeef]

I'll need to integrate a RN app to an existing native app so going brownfield. But faced the issues i've mentioned with both a new iOS App and an existing iOS app.

[monceeef]

@thymikee Let me know please if you are able to reproduce it, I tried in another machine and same outcome, bascially I do step 1 => Step 6 directly as it's a new project from https://www.rockjs.dev/docs/brownfield/ios

[thymikee]

Let me come back to it after the weekend :)

[MathiasPawshake]

Let me come back to it after the weekend :)

Any update on this? I'm having the exact same issue

After digging into this, I found out that it's trying to access two frameworks in the derived data (React.framework and ReactNativeDependencies.framework). When I manually copied them over to the derived data folder from my iOS project, it worked.
We have tested this with an older version (0.8.12 rnef), this works out of the box. I'm guessing something went wrong when packaging the frameworks?