Using Debugger never loads the app in iOS Simulator — 0.61.1

[m2mathew]

The issue

As a developer, I expect that using the debugger will still render my app.

With a brand new RN project in 0.61.1, when I trigger the debugger in the iOS simulator the app remains in the "loading" state.

I made zero modifications to the initial RN template. I only hit ⌘-D to open the context menu and selected "Debug" (see video).

This was working as expected with 0.61.0 in a project I made two days ago.

React Native version:

react-native 0.61.1
react-native-cli 2.0.1

Steps To Reproduce

1. react-native init NameOfProject
2. cd NameOfProject
3. cd ios && pod install then cd ..
   • I have also reproduced it without step 3
4. yarn ios

Describe what you expected to happen:

"Debug" will load the app in the simulator.

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

[m2mathew]

Ah, looks like I already had a debugger open at http://localhost:8081/debugger-ui/. For some reason this seems to hang the process.

Another good reason to not roll with 30 tabs open at once! 😁 I didn't notice that I already had it open.

I am closing this since the fix was to have zero debugger tabs open. Not sure if the RN team would consider this a bug.