React-native: Exception 'shadowView (for id xx) not found'

[chiraggshah]

I am facing the following error when I try to debug the app on chrome. The app runs fine when I stop remote JS debugging.

RN version: 0.42.0

[hramos]

Can you troubleshoot a bit more and see if you can identify if there's a specific piece of code that introduced the red box?

Does this reproduce on a minimal React Native app, for example?

[chiraggshah]

@hramos : I am also getting the following warning on chrome
Calling of[-RCTUIManager setFrame:forView:]which is deprecated. Maybe its related?

The app was working fine before. I just introduced redux and some sample action.

[chiraggshah]

@hramos : I just reverted all my changes related to redux and I can confirm that this is happening because I just upgraded from 0.28 to 0.42. Any help would be appreciated. Thanks

[hramos]

Is there anything specific that triggers it?

[jacobcyl]

I got a related issue #12777

[chiraggshah]

Debugged a bit more. Downgraded to 0.41.0 and I can confirm that its working correctly. So maybe something has changed in 0.42.0 which is causing this issue.

[jkolyer]

I have same problem. For me it's coming from the RCTAnimation.

I downgraded to 0.41.0 as suggested, then got this compile error which may be useful information: "RCTViewPropertyMapper.h file not found" in the RCTPropsAnimatedNode class.

After clean build the downgrade is confirmed to fix my problem as well.

[lucasbento]

I'm having this same issue, it started when I added <Modal /> to the code.

Update: just turned Debug JS Remotely off and it started working.

[hannigand]

I can confirm I also received this error when adding <Modal /> running on React Native 0.42.0 on iOS Simulator. Downgrading to 0.41.0 fixed the error.

Turning off Debug JS Remotely also works but isn't a workaround if you intend to debug the contents within the <Modal />

[damathryx]

Any other solution aside from downgrading?

[hannigand]

@damathryx a fix was issued in version 0.42.2, simply upgrading should now remove the problem.

[maier-stefan]

thanks @hannigand you just saved my Weekend :)
Turning of the remote debug worked fine. I am on 0.42.0. I am curious why this debug is affecting my Modal. Any hints?

[hramos]

Closing as this has been fixed in 0.42.2.

[lukewlms]

FYI - similar issue and fix in https://github.com/facebook/react-native/issues/9676, related to incorrect comma style in render() method.