Plugin Hermes Debugger (RN) is unavailable

[Mellbourn]

🐛 Bug Report

The debugger in Flipper has stopped working for us after upgrading Flipper to v0.238.0. The Hermes Debugger (RN) plugin is now under Unavailable plugins whereas it used to be under React Native out of the box.

It says Device plugin 'Hermes Debugger (RN)' is not supported by the selected device

The behavior is the same for both iPhone and Android simulators.

If I downgrade Flipper to v0.237.0 the Hermes debugger starts working again immediately.

To Reproduce

1. Start your native app
2. Start Flipper
3. Look for Hermes Debugger plugin

Environment

• iPhone 14 Pro Max simulator, iOS 17.0.1
• Android Pixel 3a API 32 emulator, Android version 12
• emulators run on macOS 14.1.2

[Sainadh1205]

I faced similar issue while working on android emulator before updating flipper it is working fine

[adrian-bobev]

Same for me with Flipper Version 0.239.0 (50.0.0) iPhone 13 Pro Max with iOS 17.1.2 Hermes for RN 0.72.7

[mansoorameen]

🐛 Bug Report

The debugger in Flipper has stopped working for us after upgrading Flipper to v0.238.0. The Hermes Debugger (RN) plugin is now under Unavailable plugins whereas it used to be under React Native out of the box.

It says Device plugin 'Hermes Debugger (RN)' is not supported by the selected device

The behavior is the same for both iPhone and Android simulators.

If I downgrade Flipper to v0.237.0 the Hermes debugger starts working again immediately.

To Reproduce

1. Start your native app
2. Start Flipper
3. Look for Hermes Debugger plugin

Environment

• iPhone 14 Pro Max simulator, iOS 17.0.1
• Android Pixel 3a API 32 emulator, Android version 12
• emulators run on macOS 14.1.2

Same issue on 0.239.0. Any link to download flipper 0.237.0 for mac?

[Sainadh1205]

🐛 Bug Report

The debugger in Flipper has stopped working for us after upgrading Flipper to v0.238.0. The Hermes Debugger (RN) plugin is now under Unavailable plugins whereas it used to be under React Native out of the box. It says Device plugin 'Hermes Debugger (RN)' is not supported by the selected device The behavior is the same for both iPhone and Android simulators. If I downgrade Flipper to v0.237.0 the Hermes debugger starts working again immediately.

To Reproduce

1. Start your native app
2. Start Flipper
3. Look for Hermes Debugger plugin

Environment

• iPhone 14 Pro Max simulator, iOS 17.0.1
• Android Pixel 3a API 32 emulator, Android version 12
• emulators run on macOS 14.1.2

Same issue on 0.239.0. Any link to download flipper 0.237.0 for mac? https://github.com/facebook/flipper/releases/tag/v0.237.0

[XantreDev]

The same

[dattran1232003]

For me, the Hermes debugger is only available when I press Cmd + D on the Virtual device and choose Open Debugger, but it switches to a device called React Native with no application selected, and that device not support other plugins such as Network, Advanced Async Storage, Redux Debugger,... This is weird.

[codewitharun]

same issue

[Makar8000]

This is still happening in v0.241.0. Reverting to v0.237.0 works in the meantime.

[TheSolly]

Are there any updates on this issue?

[steventnorris]

Using an android emulator API 33 with RE:Pack and react native (webpack server), I'm seeing the same thing. No Hermes debugger available. This was both on 0.237.0 and latest. Anyone find a way to get that working?

[dontuse]

same problem

[janandaraj]

Same here

[Cheizr]

21/01/2024 I have the same problem

[Hao-yiwen]

same question.

• flipper: 0.239.0

[janandaraj]

This is still happening in v0.241.0. Reverting to v0.237.0 works in the meantime.

For now i did this as temporary

[darimuhittin]

Experiencing the same issue. I hope this will be solved. Tried 0.237, 0.239, 0.245 versions but problem exists. :(

[sarthakpranesh]

This might have something todo with - https://github.com/react-native-community/discussions-and-proposals/blob/main/proposals/0641-decoupling-flipper-from-react-native-core.md

Though I am not completly sure.

[arb]

I was having the same problem and rolling back to v0.237.0 worked for me as a temporary solution.

[progtarek]

any updates on this?

[kaushikwavhal]

Would love some workaround in the meantime while this is fixed .

[devv-aman]

I had upgraded flipper to v0.239.0, and got the same issue, i even tried v0.238.0 but still Hermes Debugger was disabled then i moved back to v0.231.0 and Hermes Debugger (RN) got enabled back, there is some issue around latest releases which is causing the issue

[johnbaishya]

can somebody tell me how to rollback to older flipper version

[sarthakpranesh]

@johnbaishya You can download platform specific Flipper file from here - https://github.com/facebook/flipper/releases/tag/v0.237.0 I can confirm the Hermes Debugger (RN) works on v0.237.0 but doesn't work on anything after that.

[Hao-yiwen]

I found RN0.73.6 complete resolve debugger question.But I use chrome inspect. If you have the same question with me,I think you should try 0.73.6.

[quocbaovu15101996]

You can check at https://reactnative.dev/docs/debugging. They said: "The React Native team is working on a new JavaScript debugger experience, intended to replace Flipper, with a preview available as of React Native 0.73." So, I think you should change debug by flipper to using Google Chrome

[glade-at-gigwell]

The latest version of flipper can connect, after jumping through some hoops (like possibly running it with METRO_SERVER_PORT env var if you aren't running on 8081), but the Hermes Debugger (RN) will tell you that it's not compatible and you need to install Electron Flipper 0.239.0. It provides the link to download that version. Keep in mind they have changed how you integrate flipper in recent 0.73+ RN versions with several packages being required-- these were the versions that worked for me today. (Expo SDK50) We are indeed in a lurch waiting for the newer debugger (on RN 0.74.1+) but it's still not clear if that's going to be fully featured.

    "react-native-flipper": "^0.212.0",
    
    "expo-build-properties": "~0.11.1",
    
    "@react-native-community/cli": "^13.6.6",

[oleksiizhuk]

I've downloaded the Flipper version 0.182 - it fixes my problem