React-native: [0.26.1][iOS] Native UI component hangs application with chrome debugger active

[samfoot]

I am having an issue when I add an iOS native UI component to a new React Native project the application hangs if you enable the chrome debugger whilst the UI component is included in the project.

I have created a very simple example application here:

https://github.com/spreech/rnnativecompissue

If you run the above it will hang once you enable the debugger. If you comment out RCT_EXPORT_MODULE() at MapViewManager.m:20 and rebuild the app will work correctly even with the debugger attached.

I have been following: https://facebook.github.io/react-native/docs/native-components-ios.html#content

I am using:

OSX
iOS
RN: 0.26.1

[mikesurowiec]

I'm experiencing a similar issue on RN 0.26.1. When I enable "debug JS remotely" the simulator will freeze completely

[Elyx0]

Confirmed too when using React via Cocoapods. RN 26.2

[mitchellhuang]

I can confirm this bug exists as well. Frustrating to try and use the debugger to see console.log statements and the whole thing just crashes. RN 0.26.0. I don't think I ran into this issue on 0.25.

[mikesurowiec]

Just so you all know, I don't experience this issue on 0.27.0-rc

[nikolugano]

I can confirm this as well. It happens both in simulator and on device (when use development server) and since I moved to 0.26.2. Using react and fbsdk via Cocoapods

[alloy]

I also had this issue and can confirm that after upgrading to 0.27.0-rc1 the issue is gone.

[tarun29061990]

Still facing this issue while doing transition between screens. Debugging on MotoE and chrome debugger is active. My react-native version is 0.27.2